silva38
Answered

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

Sagot :

msakerj

Answer:

r2=48

Step-by-step explanation:

r1=72

s1=12

s2=8

[tex]r \alpha s \\ \frac{r1}{s1} = \frac{r2}{s2} \\ \frac{72}{12} = \frac{r2}{8} \\ r2 = 8 \times \frac{72}{12} = 48[/tex]

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