If r is directly proportional to the square of s and r = 72 when = 12, find r when s = 8.?

asked Sep 5, 2023 174k views

21 votes

If r is directly proportional to the

square of s and r = 72 when
= 12, find r when s = 8.?

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Answer:

r2=48

Explanation:

r1=72

s1=12

s2=8

$r \alpha s \\ (r1)/(s1) = (r2)/(s2) \\ (72)/(12) = (r2)/(8) \\ r2 = 8 * (72)/(12) = 48$

George Dima answered Sep 11, 2023

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