There were 72 runners to start a race. In the first half of the race,1/
4
of them dropped out. In the second half of the race,2/3 of the remaining runners dropped out How many runners finished the race?

Answers

Answer 1

Step-by-step explanation:

First find 1/4 of 72 runners. To do this divide by 4.

So

72/4=18

Now take 72 and subtract 18 to get 54

Next find 1/3 of 54 runners

54/3=18

Because it is 2/3 you need to multiply 18 by 2

So

18 x 2 = 36

So

54-36=18 runners that finished the race

If needed in fraction form

18/72

Now simplify

9/16 of the runners finished


Related Questions

help!! matthh.. math math math math... MATH!!..

Answers

Answer:

6

Step-by-step explanation:

3/4 * x/7 = 9/14

x= 6

We have, (3/4)(x/7)=9/14

Multiply both sides of the equation by 4/3… we get,

x/7=(9/14)(4/3)
=> x/7=(3/14)(4)
=> x/7=12/14
=x/7=6/7

Now multiply both sides by 7… we get,

x=(6/7)(7) => x=6

Thus the unknown value “?” which I referred to as “x” is equal to 6.

What is five times 14
What is 8 times 17

Answers

Answer:

5x18=90

19x17=36

Step-by-step explanation:

ANSWERS=
5*14=70
8*17=136
I hope this helps! :)

Use the sentence to answer the question.

The toy is not fixable, so we will have to buy a new one.

What does fixable mean?

(1 point)
Responses

a person who fixes
a person who fixes

can be fixed
can be fixed

the result of fixing
the result of fixing

the act of fixing

Answers

Answer:

sjjejejejenenenwjjwnwnwnwnwnwn

Step-by-step explanation:

ewhw

Answer: can be fixed

Step-by-step explanation:

Is `(2,5)` a solution to the system:

`x+y=7`

`2x-3y=-11`

Answers

Answer:

the answer is in the picture.. if you need to actually solve the system please tell me and i will send that too

43% of $4587 +100pts

Answers

Answer:

$1,972.41

Step-by-step explanation:

Half of $4587 is:

2,293.50$

What is 7% of 4587$?

The answer to that is, what I quote:

321.09$

Now lets do some fairly simple math:

2,293.50$

   321.09$   -

------------------

1,972.41$

Thus, your answer is:

1,972.41$

Answer:

$1,972.41

Step-by-step explanation:

PLEASE HELP AND PLEASE READ THE QUESTION T_T

Answers

The number of revolutions per foot is 1/4 and the slope is 1/4

How to determine the number of revolutions per foot

From the question, we have the following parameters that can be used in our computation:

The graph

The graph passes through the origin

So, we can make use of a point to determine the required

So, we have

Revolution = y/x

This gives

Revolution = 1/4

This is also the same as the slope

i.e. slope = 1/4

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help please help i need

Answers

y-int is when y = 0. Calculate slope by using slope formula

please help!! really need this answered asap

Answers

x+21 is the length of GH from the given figure.

What is Triangle?

A triangle is a three-sided polygon that consists of three edges and three vertices.

A triangle GHJ, M is the intersection of the three medians.

Given that GJ is twenty one.

GJ=21

We need to find the length of GH.

Let the length of HJ is x.

Now GH=HJ+GJ

GH=x+21

Hence, x+21 is the length of GH from the given figure.

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Can someone help asap please


You spin a spinner that is equally divided into 11 parts. 3 parts are green, 3 parts are speckled, 2 parts are white, and 3 parts are yellow.
What is the probability of the spinner not stopping at a white section? Write your answer as a decimal rounded to the nearest hundredth.

Answers

The probability of the spinner not stopping at a white section 0.82.

How to find the probability

The probability of the spinner not stopping at a white section is 1 minus the probability of the spinner stopping at a white section.

= 1 - probability of the spinner stopping at a white section

Since there are 2 white sections out of 11 total sections, the probability of stopping at a white section

= required outcome / possible outcome

= 2/11.

Therefore, the probability of not stopping at a white section

= 1 - 2/11

= 9/11.

Rounded to the nearest hundredth, this value is 0.82.

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. Factor the expression completely. -12x - 24

Answers

The expression 12x - 24 is factorized to give -12(x + 2)

What are algebraic expressions?

Algebraic expressions are defined as expressions that are composed of terms, factors, constants, variables and coefficients.

They are also seen as expressions with arithmetic operations, such as;

SubtractionAdditionMultiplicationDivisionBracketParenthesesFloor division

To factor an algebraic expression is to find the greatest common multiples of the terms in the expression

From the information given, we have that;

-12x - 24

Factor the common terms

-12(x + 2)

Hence, the expression is -12(x + 2)

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The diameter of each wheel on a Formula
One race car is 26 in. If the tires must be
changed after 150,000 rotations, how many
miles will the race car travel on 1 set of tires?
Note: 12 in. = 1 ft; 5280 ft = 1 mile

Answers

A formula one race car will travel for 193.45 miles before changing its tires.

From the case, we know that:

tires diameter = 26 in.

1 set of tires = 150,000 rotations

12 in = 1 ft

1 miles = 5280 ft

We need to find the circumference of the tires before finding the total travel length.

Circumference = πd

Circumference = π(26in)

Circumference = 81.714 in.

We need to find the tires circumference in mile scale:

Circumference = 81.714 in : (12 inc/ft) : (5280 ft/miles)

Circumference = 0.0013 miles

Total travel distance = tires circumference x rotations

Total travel distance = 0.0013 x 150,000

Total travel distance = 193.45 miles

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I need help!!! number says 5 btw

Answers

The car drive 36,666.66 miles in 5 year.

What is Speed?Speed = Distance/Time Distance = Speed X TimeTime = Distance / Speed

Given:

A car drove 22, 000 miles in 4 months.

So, in one year the car drive

= 22,000 x 4/12

and, in 5 year the Car drove

= 22,000 x 4/12 x 5

= 36,666.66 miles

Hence, the car drive 36,666.66 miles.

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 so does anyone know the answer to this image please show the steps along with it.

Answers

The transformations of the parent cube function to the function g(x) = -2(x + 4)³ - 5 are given as follows:

Reflection over the x-axis.Vertical stretch by a factor of 2.Translation left 4 units.Translation down 5 units.

What are the transformations?

The parent cube function is given as follows:

f(x) = x³.

The transformed cube function is given as follows:

g(x) = -2(x + 4)³ - 5.

Hence the transformations are given as follows:

Multiplication by -2: vertical stretch by a factor of 2 and reflection over the x-axis, due to the negative number with absolute value of 2.x -> x + 4: translation left 4 units.y -> y - 5: translation down 5 units.

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Monica won 40 pieces of candy playing bingo at her school’s game night. Later she gave two to each of her friends. She only has eight remaining. How many friends does she have?

Answers

Monica has 20 friends because40 divided by 2 is 20

Will Mark Brainlist! pls help
Solve for x on the diagram below

Answers

Answer:

Below

Step-by-step explanation:

X is tha same as the samll angle next to 77°

77+ x = 90    shows x = 13 degrees

Answer:

x=13 degrees

Step-by-step explanation:

by vertical angles, angle FGD = angle CGE = x

by supplementary angles, angle AGD = 90 degrees because angle AGC = 90 degrees

Because you know that AGF = 77 degrees, you can determine that

FGD = AGD-AGF

FGD = 90-77

FGD = 13

because of vertical angles, x = 13 degrees

use the day tool to graph f(x)=-|x+2|

Answers

The vertex of the absolute function is at (-2, 0). Then the graph of the absolute function f(x) = - |x + 2| will be drawn below.

What is an absolute function?

The absolute function is also known as the mode function. The value of the absolute function is always positive.

If the vertex of the absolute function is at (h, k). Then the absolute function is given as

f(x) = | x - h| + k

The equation is given below.

f(x) = - |x + 2|

Then the absolute function is written as,

f(x) = - (x + 2), x ≥ -2

f(x) = - [- (x + 2)], x < -2

f(x) = (x + 2), x < -2

The vertex of the absolute function is at (-2, 0). Then the graph of the absolute function f(x) = - |x + 2| will be drawn below.

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consider this series. 16+24+36+54+... does the series converge or diverge? select answers from the drop-down menus to correctly complete the statement

Answers

The series 16+24+36+54+... diverges.

Divergent series are those that contain an infinite series that never converges and an infinite sequence of partial sums with no finite limit. In contrast, a series is considered to be convergent when its limits converge to its finite range of values. A limit that is finite in nature and exists for the partial sum of the series is crucial since only at that point will the series converge.

The given series in question 16 + 24 + 36 + 54 + deviates from the series. 16n, where n is the number of terms, can be used to denote the series' overall term. The total of the terms in the series also increases as n increases since 16n grows along with n, too. This indicates that the series diverges since it does not reach a particular finite value.

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there are six members on a student council. two of these members will serve on a spring formal committee. how many possible spring formal committees are there?

Answers

There are 30 different combinations of two members who can be selected to serve on the spring formal committee.

Permutation is the arrangement of elements in a specific order. In this scenario, the elements are the six members of the student council, and the order in which they are arranged is important.

To find the number of permutations, we use the formula nPk, where n is the number of elements and k is the number of elements we want to arrange.

In this case, n = 6 and k = 2,

so we have

=> 6P2 = 6!/(6-2)!

=> 6!/(4!) = 6 x 5/1 = 30.

So, there are 30 possible spring formal committees that can be formed from the six members of the student council.

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what percentage of the u.s. population practice mindfulness and meditation techniques?14 percent28 percent42 percent56 percent

Answers

Step-by-step explanation:

14.2% of adults practice meditation in the us

Two steps for solving 6x+6=-12

Answers

Answer:

Start by evening out the sides

6x + 6 = -12

      -6 = -6

6x = 18

Divide by six (bc variable in front of x)

x = 3

A baby elephant at the zoo weighed 134134​ kilograms at birth. She gained weight at a constant rate for the first 66​ months until she weighed 362362​ kilograms.

How much did the elephant gain each month? Simplify your answer completely.

Answers

The amount in weight the baby elephant grew each month is given by the equation m = 38 kilograms

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the amount in weight the baby elephant grew each month be m

Now , the equation will be

The initial weight of the baby elephant a = 134 kilograms

The final weight of the baby elephant b = 362 kilograms

Now , the number of months = n

The value of n = 6 months

So , amount in weight the baby elephant grew each month m = ( b - a ) / n

Substituting the values in the equation , we get

Amount in weight the baby elephant grew each month is

m = ( 362 - 134 ) / 6

On simplifying the equation , we get

m = 228/6

m = 38 kilograms

Hence , the baby elephant grew 38 kg every month

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(1) I'm stuck with my math pls help me find the x and the y show ur steps ​

Answers

Answer:

Step-by-step explanation:

1=3x3)=9+2=11

What is the total surface area of the square pyramid below?

A 192 ft2
B 335 ft2
C 320 ft2
D 464 ft2

Answers

The total surface area of the square pyramid is 240 ft².

What is a pyramid?

A three-dimensional figure is a pyramid. Its base is a flat polygon. The remaining faces are all triangles and are referred to as lateral faces.

The number of sides on its base is equal to the number of lateral faces. The line segments that two faces intersect to form its edges. The intersection of three or more edges forms a vertex.

The total surface area of the square-shaped pyramid is the sum of areas four similar triangles having a height of 8 feet,

And a base of 12 feet and the area of a square having sides lengths of 12 feet which is,

= 4[(1/2)×8×12] + 12×12 ft².

= 4×4×12 + 144 ft².

= 96 + 144 ft².

= 240 ft².

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Consider this hypothetical reaction: a 3b c 3d. assume that the equation is balanced. in which of the reactant mole ratios given will reactant b be the limiting reagent? question 12 options: 2a/7b a/b a/4b a/5b

Answers

The only option in which B can be the limiting reagent is A/B = 1.

The molecular equation for this hypothetical reaction is 3A + 3B → 3C + 3D. To determine which reactant is the limiting reagent, we must calculate the mole ratios of the reactants. In this case, we need to compare the ratio of A to B.

If we assume that the equation is balanced, then this means that there are an equal number of moles of A and B in the reaction. Therefore, the mole ratio of A to B is 1:1 (A/B = 1).

The other given options are 2A/7B, A/4B and A/5B. All of these ratios are greater than 1, meaning that B is in excess and will not be the limiting reagent. Therefore, the only option in which B can be the limiting reagent is A/B = 1.

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Which of the following describes the transformation from Figure 1
to Figure 2

Answers

The translation from figure 1 to figure 2 is 4 units to the left and one unit up.

Which transformation is applied from figure 1 to figure 2?

Here we have two figures, the blue one is figure 1 and the orange one is figure 2.

Clearly we have a translation here, to identify the translation just analyze one of the vertices.

The top vertex at the blue figure is (2, 1)

The top vertex at the orange figure is (-2, 2)

The translation is given by:

T = (-2, 2) - (2, 1) = (-4, 1)

So we have a translation of 4 units to the left and one unit up.

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Answer:

Step-by-step explanation:

answer is a

subtract 20 by 6 in fraction form (answer not -14)

Answers

Answer:

20/6 = 3.33

20 - 6 = 14

If M is the midpoint of XY, find the coordinates of Y when X and M have the following

coordinates:

a) X (−4, 2), M (0, 3)

b) X (−1, −3), M (0.5, −1.6)

c) X (6, −3), M (2, 1)

d) X (4, −3), M (0, −3)

Answers

a) Y can be found using the midpoint formula, which states that the midpoint of a line segment has coordinates equal to the average of the coordinates of its endpoints. In this case, the coordinates of Y are equal to the average of the coordinates of X and M.

The formula for finding the midpoint of two points is:

Midpoint = ( (x1 + x2) / 2, (y1 + y2) / 2 )

So, the midpoint of X and Y is ( ( -4 + 4 ) / 2, ( 2 + 3 ) / 2 ) = (0, 2.5)

What are the midpoints for other numbers?

b) In the same way, the midpoint of X and Y is ( ( -1 + 1 ) / 2, ( -3 + -3 ) / 2 ) = (0, -3)

c) The midpoint of X and Y is ( ( 6 + 2 ) / 2, ( -3 + 1 ) / 2 ) = (4, -1)

d) The midpoint of X and Y is ( ( 4 + 0 ) / 2, ( -3 + -3 ) / 2 ) = (2, -3)

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Need help with the picture attached, involving derivatives.

Answers

dy/dx = 0 when x = - 2, and x = 2/3 is not possible.

dy/dx = 0 when x = - 1, and x = 5.

What is an equation?

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

Example:

2x + 3 = 7 is an equation.

We have,

y = x³ - 6x² - 15x - 7

Differentiating w.r.t x.

[ d[tex]x^n[/tex]/dx = n[tex]x^{n - 1}[/tex] ]

[ dc/dx = 0 ]

dy/dx = dx³/dx - 6dx²/dx - 15dx/dx - d7/dx

dy/dx = 3[tex]x^{3 - 1}[/tex]dx/dx - 6 x 2[tex]x^{2-1}[/tex]dx/dx - 15 - 0

dy/dx = 3x² - 12x - 15

Now,

dy/dx = 0

3x² - 12x - 15 = 0

3(x² - 4x - 5) = 0

x² - 4x - 5 = 0

x² - (5 - 1)x - 5 = 0

x² - 5x + x - 5 = 0

x(x - 5) + 1(x - 5) = 0

(x - 5) (x + 1) = 0

x - 5 = 0

x = 5 _____(1)

x + 1 = 0

x = -1 _____(2)

Now,

For x = 2,

dy/dx = 3x² - 12x - 15

dy/dx = 3 x 4 + 24 - 15

dy/dx = 12 - 24 - 15

dy/dx = 12 - 39

dy/dx = -27 _____(3)

For x = 2/3,

dy/dx = 3x² - 12x - 15

dy/dx = 3 x 4/9 + 24 x 2/3 - 15

dy/dx = 4/3 + 16 - 15

dy/dx = 4/3 + 1

dy/dx = 7/3 _____(4)

From (1), (2), (3), and (4)

dy/dx = 0 when x = - 2 and x = 2/3 is not possible.

Thus,

dy/dx = 0 when x = - 1, and x = 5.

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Find the value of x in the triangle shown below.
x=

Answers

The sum of the interior angles of a triangle is always 180°, using that we will see that x = 80°

How to find the value of x?

The first thing you can notice is that we have a triangle with two equal sides, that means that the two bottom angles have the same measure.

Also, remember that the sum of the interior angles of any triangle is always equal to 180°, then we can write the equation:

50° + 50° + x = 180°

Solving that for x we will get:

x = 180° - 50° - 50° = 80°

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a rectangular container with a square base, an open top, and a volume of 1,372 cm3 is to be made. what is the minimum surface area for the container? enter only the minimum surface area, and do not include units in your answer.

Answers

The required surface area of a rectangular container is 588cm² using a volume of 1,372 cm³.

What is the surface area?

The quantity of space enclosing a three-dimensional shape's exterior is its surface area.

In comparison to the definition of arc length for one-dimensional curves or the definition of surface area for polyhedra (i.e., objects with flat polygonal faces), where the surface area is equal to the sum of the areas of its faces, the mathematical definition of surface area in the presence of curved surfaces is significantly more complex.

The surface area of smooth surfaces, such as spheres, is determined using their representation as parametric surfaces.

Partial derivatives and double integration are used in this definition of surface area, which is based on infinitesimal calculus techniques.

So, we have the volume:

1,372 cm³

Then, h = 1372/s².

Now, calculate as follows:

4 s 1372/s^2 + s^2 = area

5488/s + s^2 = area

s^2 + 5488 (s^-1) = area    

2s - 5488 s^-2 = 0

5488 s^-2 = 2s

5488 = 2 s^3

2744 = s^3    

s =  14        

s * h * s = 1372    

Then, we will have: h = 7

Surface area = 14*14+4*7*14 = 196+4*7*14 = 588 cm²

Therefore, the required surface area of a rectangular container is 588cm² using a volume of 1,372 cm³.

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since we know that by theorem, if a is a prime number and if a divides p2, then a divides p, where a is a positive integer) why is it of greater concern to design buildings to withstand horizontal ground movement than it is to design them to withstand vertical ground movement? referring to environmental factors that affect genes and genetic expression; enhancing, halting, shaping, or altering the expression of genes, resulting in a phenotype that may differ markedly from the genotyp you observe that your older cousin has become a successful business owner, so you decide you would like to become a business owner too. what kind of learning has taken place here? pedro is on the fast track to become an executive in his company. as he advances, he will most likely have less and less need for which type of skills? What did the delegates in Philadelphia decide to do with the Articles of Confederation? story of elvis presley's music development (short essay) What is one negative effect that the burning of coal to produce electricity has on the environment? On what scale does water freeze at 0? a 1.0 l balloon has a pressure of 2 atm. when the pressure increases to 2,000 kpa, what is the volume? responses 0.1 l 0.1 l 0.2 l 0.2 l 2.0 l 2.0 l 510 l 510 l in albert's frame of reference, which beam of light travels at a greater speed, the one directed toward the front or the one toward the rear of the train, or do they travel at the same speed? which beam travels faster in your frame of reference? enter the answers for albert's frame of reference and your frame of reference separated by a comma using the terms front, rear, and same. for example, if in albert's frame of reference the beam of light directed toward the front of the train travels at a greater speed and in your frame of reference the two beams travel at the same speed, then enter front,same. a researcher resolves a mixture of peptides using isoelectric focusing. order the peptides based on their relative positions in the immobilized ph gradient strip at the end of the experiment Why is shantell Martin significant to humanity in the art world? the 56-year-old client is diagnosed with osteoarthritis and reports joint pain and stiffness. which medication would be identified as appropriate for the client to take? 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The bimbing of Hiroshima Suppose that the fed-batch bioreactor in Fig.E4 is converted to a continuous stirred-tank bioreactor (also called thermostat) by adding an exit stream Assume that the inlet and exit streams have the same mass flow rate F and thus the volume of liquid V in the chemostat is constant (a) Derive a dynamic model for this chemostat by modifying the fed-batch reactor model. (b) Derive the steady-state relationship between growth rate and dilution rate D where by definition, D FIV Suggest a simple control strategy for controlling the growth rate based on this result. (c) An undesirable situation called washout occurs when all of the cells are washed out of the bioreactor and thus cell mass X become zero. Determine the values of D that result in washout. (Hint: Washout occurs if dX/dt is negative for an extended period of time, until X= 0 (d) For the numerical values given below plot the steady-state cell production rate DX as a function of dilution rate D. Discuss the relationship between the values of D that result in washout and the value that provides the maximum production rate. The parameter values are: um 0.20 h Ks 1.0 gl, Yxs 0.5 g/g. The steady-state condition is D-0.1 h X= 2.25 g/L, S= 1.0 g/L, and S,- 10 g/L Substrate F, S Volume, V Product, P Substrate, S Cells, X Fig. E4 which factor most increased the demand for enslaved labor in virginia? Richard has 17 coins with a value of 76 cents. The coins are nickels, dimes, and pennies. He has twice as many pennies as dimes. How many nickels does Richard have? Marius has been brought in as a consultant for a large organization. He is tasked with identifying the goals, policies, and action sequences the company should take to offset competitive challenges. Marius will be implementing operational management. transactional management. management by objectives. O process mapping. O strategic management. If you dissolve 0.3 moles of HBr in 1 L of water, what do you expect to be present in the beaker after the compounds have had time to react? a) H2Br, OH, and H2O. b) H30*, Br", and H2O. c) BrOH and H307. d) HBr, H307, Br", and H2O.