Suppose why varies directly with X. Write a variation equation that relates x and y

Mathematics

1 answer:

diamong [38]2 years ago

3 0

Answer:

$x = y - 6.4$

Steps :

1. Create an equation

If x-4=0 and y-10.4=0, then x - 4 = y - 10.4

$x - 4 = y - 10.4$

2. Isolate variable X by adding 4 to both sides

$x = y - 6.4$

3. (Optional) Check Answer by plugging given values into the equation

$(4) = (10.4) - 6.4$

4 = 4 is a true statement

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Answer:

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Step-by-step explanation:

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The difference is 2 and the original cost is 10. Now, we have the equation

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2 years ago

sarah used 3/4 pound of blueberries to make 1/2 cup of jam. how many pounds of blueberries would she need to make a cup of jam?

Ksenya-84 [330]

Answer: She needed $1\frac{1}{2}\text{ pounds of blueberries}$ to make a cup of jam .

Step-by-step explanation:

Since we have given that

Sarah used $\frac{3}{4}$ pound of blueberries to make $\frac{1}{2}$ cup of jam.

As we need to find the number of pounds of blueberries she would need to make a cup of jam.

So, we will use "Unitary Method":

$\text{For }\frac{1}{2}\text{ cup of jam},\\\\\text{ she need }\frac{3}{4}\text{ pound of blueberries }\\\\\text{ For 1 cup of jam}.\\\\\text{She need }=\frac{3}{4}\times 2=\frac{3}{2}=1\frac{1}{2}\text{ pounds of blueberries }$