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If x and y vary directly, and X = 3 when y = 15, what is the value of x when y = 25?

User Cleveland
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If x and y vary directly, that means that their ratio is always the same. In other words, x/y = k, where k is a constant. To find the value of k, we can use the information that x = 3 when y = 15:

x/y = k
3/15 = k
k = 0.2

Now that we know the value of k, we can use it to find x when y = 25:

x/y = k
x/25 = 0.2
x = 5
User Vojtech
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Answer:

Explanation:

User NewQueries
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