The variable y is directly proportional to the variable x if y= 32 when x= 20 what is the value of x when y= 40

x = 25

Step-by-step explanation:

A directly proportional relationship satisfies a proportion or two equal ratios. You can create a ratio between x and y coordinates written as y/x.

So when y = 32 and x= 20, the ratio is 32/20. If y = 40, what is x? This is the ratio 40/x. Set them equal in a proportion. Then cross multiply to solve for x.

32(x) = 20(40)

32x = 800

x = 25

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