Help, I don’t know how to solve this

Answer:

-44

Step-by-step explanation:

2 x 4 + 3 - 8 ÷ 1 x 6 + 4 - 11=-44

Hope this helps!

Answer:

-44

Step-by-step explanation:

The ordered pair which is a solution to every linear equation of the form given is; (0, 0).

It follows from the task content that the ordered pair which satisfies the equation of the form y =Mx be determined.

On this note, since the product of any real number, slope in this scenario and 0 is; 0.

Ultimately, it follows that the required ordered pair is; (0, 0) for any real number value of the slope, m.

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       A parallel equation (when graphed) will have the same slope, but a different y-intercept.

       As long as you keep y = -[tex]\frac{5}{2}[/tex]x + b, you can input anything for b to solve this question.

       Given:

y = -[tex]\frac{5}{2}[/tex]x - 5

       Equation of a parallel line:

y = -[tex]\frac{5}{2}[/tex]x + 6, y = -[tex]\frac{5}{2}[/tex]x + 1,356, y = -[tex]\frac{5}{2}[/tex]x - 8, etc

     Example answer you can use:

             y = -[tex]\frac{5}{2}[/tex]x - 8

The order from least to greatest of the numbers will be B. one eighth, 0.4, seventy five percent, seven fifths.

It should be noted that 7/5 = 1.4

It should be noted that 1/8 = 0.125

It should be noted that 75% = 0.75

Therefore, the ordering of the numbers from least to greatest will be one eighth, 0.4, seventy five percent, seven fifths.

In conclusion, the correct option is B.

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Answer:

b

Step-by-step explanation:

We can use the concept of unitary method to solve the question.The weight of 6 cubic feet of water is 0.19 Ton.

Unitary method helps us in finding the solution to seemingly complicated problems, here we have been given the amount of water that one cubic foot can hold, first we need to find out how much water 6 cubic feet can hold.

1 cubic foot hols 7.48 gallons of water

6 cubic feet holds 7.48x6 gallons of water=44.88 gallons

Next we know how much 1 gallon of water weighs in pounds,we need to find out how much 44.88 gallons of water weigh in pounds first and then convert it to tons.

1 gallon weighs 8.33 pounds

44.88 gallons weighs 8.33x44.88=373.8504 pounds

1 Ton=2000 pounds

373.8504 pounds=[tex]\frac{373.8504}{2000}[/tex]=0.1869 Ton≈0.19 Ton

Thus we can see that 6 cubic feet of water weighs 0.19 Ton, we used unitary method step by step to reach this result.

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Answer:

5 hours and 48 minutes

Step-by-step explanation:

The equation for finding average speed is:  [tex]\frac{\text{Total Distance}}{\text{Total Time}}[/tex]

Let x represent the distance for both the journey from Riley's college to home and back. We can use one variable to represent this because both distances are the same.

We also know that the total round trip took 12 hours. Let y represent the time it took for Riley to drive from college to home. Therefore the time it takes for Riley to drive from home to college is 12 - y.

Using this information, we can set up a system of equations.

[tex]65.1=\frac{x}{y}\\\\69.6=\frac{x}{12-y}[/tex]

Multiply both sides of the first equation by "y" and both sides of the second equation by "12 - y".

[tex]65.1y=x\\\\835.2-69.6y=x[/tex]

Since both 65.1y and 835.2-69.6y are equivalent to x, we can set them equal to each other.

[tex]65.1y=835.2-69.6y[/tex]

Now, we have to solve the equation for time or "y".

[tex]65.1y=835.2-69.6y[/tex]

Add 69.6y to both sides

[tex]65.1y+69.6y=835.2[/tex]

[tex]134.7y=835.2[/tex]

Divide both sides by 134.7

[tex]y\approx6.2 $ hours = Six hours Twelve Minutes[/tex]

This is the time it took for Riley to drive from college to home, therefore the time it took for Riley to drive from home back to college is:

[tex]12-6.2=5.8=5$ hours and 48 minutes[/tex]

5 hours and 48 minutes

The lengths of the other two sides is 6 inches each.

The perimeter of any figure is sum of all the sides of the figure.

Here, we are given that the area of a triangle is 18 inches. Also, in the figure, we can see that the 3 sides of the triangle are-

6 inches, s inches and s inches.

Therefore, the perimeter of the given triangle will be-

Perimeter = 6 + s + s

⇒ 18 = 6 + s + s

Thus, the equation to find the lengths of the two sides is-

18 = 6 + 2s

18 - 6 = 2s

12 = 2s

2s = 12

s = 12/ 2

s = 6

Thus, the lengths of the other two sides is 6 inches.

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The image would also have two pairs of parallel sides

The given parameters are:

The translation transformation is a rigid transformation

This means that, it keeps the orientation that is being transformed

The initial figure has two pairs of parallel sides

Hence, the image would also have two pairs of parallel sides

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Answer :  7.5 ft

Step-by-step explanation:

when the length of the shadow is 8ft, the actual height of the man = 5ft

8:5

let the giraffe be 'x' ft tall.

if the length of the shadow is 12ft, actual height = x ft

12:x

8:5 x 12:x

[tex]\frac{8}{5}[/tex] × [tex]\frac{12}{x}[/tex]

x= [tex]\frac{15}{2}[/tex]

x=7.5 ft

Therefore, the giraffe is 7.5ft tall.

Answer:

[tex]7.5\; {\rm ft}[/tex].

Step-by-step explanation:

The height of objects nearby under the sun are approximately proportional to the length of their shadows.

In other words, if the man and the giraffe are near each other and under the sun:

[tex]\begin{aligned} \frac{\text{height of man}}{\text{length of shadow of man}} = \frac{\text{height of giraffe}}{\text{length of shadow of giraffe}}\end{aligned}[/tex].

Given that:

Rearrange the equation to find [tex](\text{height of giraffe})[/tex]:

[tex]\begin{aligned} (\text{height of giraffe}) &= (\text{length of shadow of giraffe})\times \frac{\text{height of man}}{\text{length of shadow of man}} \\ &= 12\; {\rm ft} \times \frac{5\; {\rm ft}}{8\; {\rm ft}} \\ &= 7.5\; {\rm ft}\end{aligned}[/tex].

The speed of the faster cyclist is 30 mph.

Two cyclists, distance = 90 miles.

let the speed of one cyclist is = x and

let the speed of the other cyclist = 2x

time after which both the cyclists will meet = 3 hours.

Since they are travelling towards each other the effective speed = 2x ₊ x

= 3x

we know that time = distance/speed

3 = 90/3x

3x = 30

x = 10 mph speed of one cyclist.

speed of the other cyclist will be 3x = 3 × 10 = 30 mph

The speed of the fastest cyclist is 30 mph.

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Start by dividing both sides by G, giving us

[tex]\frac{F}{G}=\frac{m_{1} m_{2} }{d^{2} } }[/tex]. Multiply both sides by d^2. [tex]\frac{F}{G}(d^{2})=m_{1} m_{2}[/tex].

Finally, divide both sides by m2.

[tex](\frac{F}{G}\div{m_{2}}) (\frac{d^{2} }{m_{2} } )=m_{1}[/tex]

Hope this helps! This was a tough problem for me too.

Answer:

Step-by-step explanation:

Answer:

7 + 2 + 4 = 13 km
13 km x 0.62 = 8.06
The answer is about 8.06 miles

Step-by-step explanation:

Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day!

Answer:

19 cm.

Step-by-step explanation:

Area = h(a + b)/2

where h = height, and a and b are parallel sides,

145 = 10(10 + b)/2

290 = 100 + 10b

10b = 190

b  = 19 cm.

Answer: H=2A/B

H=12 cm

Step-by-step explanation:

A = 1/2BH

2A=BH

H=2A/B

H=2(90)/15

H=180/15

H=12 cm

The height of the triangle is 12 cm.

To solve the formula A = (1/2)BH for H, we need to isolate the variable H.

A = (1/2)BH

Multiply both sides of the equation by 2 to eliminate the fraction:

2A = BH

To solve for H, divide both sides of the equation by B:

H = 2A / B

Now we have the formula for H in terms of A and B.

To find the height of a triangle with an area of 90 cm² and a base of 15 cm, we can substitute these values into the formula:

H = 2(90) / 15

H = 180 / 15

H = 12 cm

Therefore, the height of the triangle is 12 cm.

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The value of the function f(-4) = 16.

A function is categorized as a relationship between a set of inputs that each have one output.

For the given function in the question;

f(x) = x ² , if  x < 0.

f(x) = 0 , if  x = 0.

f(x) = 2x + 1 , if  x > 0

Now, estimate the values;

(a) f(-4)

As, the value of the x to be substitute is negative, the function used will be.

f(x) = x ² ,for  x < 0.

Put the value x = -4

f(-4) = (-4)²

f(-4) = 16

The value of f(-4) = 16.

(b) f(0)

As the value of function is zero.

Then,

f(x) = 0 , if  x = 0.

Put x = 0 in function we will get.

f(x) = 0.

(c) f(2)

As the value to be substituted is positive, the function used is;

f(x) = 2x + 1 , if  x > 0

Put x = 2

f(2) = 4 + 1

f(2) = 5

Thus, the value of f(2) is 5.

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Answer:

2.204×[tex]10^{9}[/tex]

Step-by-step explanation:

Convert to scientific notation.

The square root of one hundred forty is less than one hundred five ninths. So, option D is correct.

According to this question we have to compare the square roots of both numbers One Hundred Forty and One Hundred Five Ninths. So, we have to calculate their square roots.

The square root of One hundred Forty: √140

The square root of One hundred Forty:  11.832

The square root of One Hundred Five Ninths: √159

The square root of One Hundred Five Ninths: 12.609

Comparing both of their square roots we can clearly see that :

           (11.832) < (12.609)

The square root of 140 < Square root of 159

Hence, option D is correct. The square root of 140 is less than 159.

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Answer:

the scientific approach led to the birth of modern psychology in the 1800's as psychologists argued that ideas about human behavior and mental processes should be supported by this. In the 1800's, psychologists established these for the (scientific study of human behavior and mental processes).

Step-by-step explanation:

We get the values of RS and RT as 6 and 17 respectively after solving the equations.

We are given the equations:

RS = 2x - 8

ST = 11

RT = x + 10

Now, we know that:

RS + ST = RT.

Substituting the values, we get that:

2 x - 8 + 11 = x + 10

2 x + 3 = x + 10

2 x - x = 10 - 3

x = 7

Now substituting it to find RS and RT:

RS = 2 x - 8

RS = 2 ( 7 ) - 8

RS = 14 - 8

RS = 6

RT = x + 10

RT = 7 + 10

RT = 17

Therefore, we get the values of RS and RT as 6 and 17 respectively after solving the equations.

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The cyclist cover 200 kilometer in 5 hours and his speed in miles are  25 miles per hour.

According to the statement

We have to find that the speed of the cyclist.

So, For this purpose, we know that the

Speed is the time rate at which an object is moving along a path

From the given information:

A cyclist his bike at a speed of 40 kilometers per hour

Then

The distance he covered in 5 hours = 40*5

The distance he covered in 5 hours = 200.

And then

The speed in miles :

We have given that the  1 mile is equal to 1.6 kilometers

Then

If he covers a 40 kilometers in a hour then

in miles it becomes = 40/1.6

In other words,

Speed in miles = 40/1.6

Speed in miles = 25 miles per hour.

So, The cyclist cover 200 kilometer in 5 hours and his speed in miles are  25 miles per hour.

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Answer:

32

Step-by-step explanation:

The given set has 5 elements, meaning it has 2⁵ = 32 subsets.

This means the cardinality of the desired set is 32.

Answer:

946 gal

629 gal

Step-by-step explanation:

volume that evaporates = LWH

volume = (5.0 m × 100 cm/m × inch / 2.54 cm) × (12.0 m × 100 cm/m × inch / 2.54 cm) × 2.35 inch

volume = 218,550 in.³

volume = 218,550 in.³ × 1 gal / 231 in.³

volume = 946 gallons

You must add 946 gallons.

The loss to evaporation is 2.35 in.

The amount of rain is 20 mm

The net loss is

2.35 in. × 25.4 mm / inch - 20 mm = 39.69 mm

39.69 mm × 1 inch / 25.4 mm = 1.563 in.

The net loss now is 1.563 in. instead of 2.35 in.

We find the fraction of the the previous loss is the loss with rain and multiply by the previous loss.

1.563/2.35 × 946 gal = 629 gal

With rain, then 629 gallons of water must be added.

We get that Shannon did not mix the correct shade as the ratios are not equal.

We are given that a particular shade of paint is made by mixing five parts of red paint with seven parts of blue paint.

This means that the ratio of the paints in that shade is

Red : Blue = 5 : 7.

Now, we are also given that to make the correct shade, Shannon makes 12 quarts of blue paint with 8 quarts of red paint.

Here the ratio becomes:

Red : Blue = 8 : 12

= 4 : 6

= 2 : 3

Now, since both the ratios are not equal, he did not mix the correct shade.

Therefore, we get that Shannon did not mix the correct shade as the ratios are not equal.

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The value 8 x 10^5 is 200 times greater than 4 x 10^3

The standard scientific notation is expressed as A * 10^n

where

A is the values between 1 and 10

n is any integer

In order to determine how many times larger is 8 x 10^5 than 4 x 10^3, we will take the ratio;

Ratio = 8 x 10^5/4 * 10^3

Ratio = 8/4 * 10^5/10^3

Ratio = 2 * 10^2

Ratio = 200

Hence the value 8 x 10^5 is 200 times greater than 4 x 10^3

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The required number is 2001.

To solve this problem we need to know the concept of rounding off.

Rounding off a number means making the value of number equal to the nearest tens place.

When we round off 45 we will get 50; when we round off 44 we get 40.

So, if a number has 5 at its unit place then it will be rounded off to the tens place which is ahead of 5 and if a number is less than 5 then it is rounded off to the tens place before that number.

Here it is asked to find the least whole number that rounds off to 2000 when rounded off to nearest hundred which will be 2001.

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Answer:

3080983

Step-by-step explanation:

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Answer:

x = (- [tex]\frac{13}{2}[/tex], 0)
y = (0,26)

Step-by-step explanation:

To find the x-intercept, substitute in 0 for y and solve for x. To find the y-intercept, substitute in 0 for x and solve for y.