Kali spent half of her weekly allowance on clothes. To earn more money her parents let her clean the gutters for $9. What is her weekly allowance if she ended with $13?

Answers

Answer 1

Answer:

Kali weekly allowance if she ended with $13 would be $8.

What is the unitary method?

The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.

we have been given the information as;

Kali spent half of her weekly allowance on clothes.

After Kali spent half of her allowance and earned $9, she is left with $13.

This means the remaining of her weekly allowance is $9.

This can be derived by subtracting $9.

$13 - $9 = $4

This means that it is $4 that remains after spending half of her weekly allowance.

Therefore, her weekly allowance = $4 x 2 = $8

Hence, Kali weekly allowance if she ended with $13 would be $8.

Learn more about the unitary method;

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Answer 2

Answer: So to find the answer to this, you have to consider that $(1)/(2) x + 9 = 13$ - half because half the pocket money (x) was spend on clothes, then plus 9 because that's how much extra she gained and 13 because that was the result of all the changes.

To solve this, first subtract 9 from both side, which leaves you with $(1)/(2) x = 4$ and $(1)/(2) x$ is the same as $(1x)/(2)$ , so to solve this, multiply both sides of the equation by two, resulting in $x = 8$ . SO from this we can conclude that the weekly allowance is $8

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Answers

First, find the LCD. That is 12.

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Answer:

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Step-by-step explanation:

The sum of three consecutive numbers is 117. find the largest of the numbers

Answers

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difference of 1
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Answers

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Answer:

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Step-by-step explanation:

Help me pls i need it

Answers

Answer:

y = 255x + 6559

Step-by-step explanation:

Function Modeling

We have the following relationship between the minutes into the ride (x) and the elevation of the tram (y):

x={2,5,9,14}

y={7069,7834,8854,10129}

We first test if the relationship is linear or not.

A linear relationship is tested by calculating the slope from any pair of points.

Suppose we know the line passes through points A(x1,y1) and B(x2,y2). The slope can be calculated with the equation:

$\displaystyle m=(y_2-y_1)/(x_2-x_1)$

Selecting the first two points (2,7069) and (5,7834)

$\displaystyle m=(7834-7069)/(5-2)=(765)/(3)$

m = 255

Selecting the first two points (5,7834) and (9,8854)

$\displaystyle m=(8854-7834)/(9-5)=(1020)/(4)$

m=255

If we repeat the calculation with any pair of points, we get the same value for the slope, thus we can conclude the relationship is linear.

Using the point-slope form of the line:

y - k = m( x - h )

We select the point (2,7069)

y - 7069 = 255( x- 2 )

Operating:

y - 7069 = 255x - 510

Adding 7069:

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Answers

Answer:

Step-by-step explanation:

Answer:

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