Question

y varies inversely as x if y =30 then x=12 find y when y =15
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Answer 1

Answer:

y = 75/2 = 37.5

Step-by-step explanation:

Given,

y varies inversely with x.

If y = 30, x = 12

Ratio of y to x = 30 : 12

We have to find y when x = 15

Ratio of y to x = y : 15

Comparing two ratios,

30/12 = y/15

y = 30 × 15/12

y = 37.5