Question

WILL GIVE BRAINLYEST

Answer 1

Answer:

B = $\frac{4}{9}$A

Step-by-step explanation:

Given that B varies directly as A then the equation relating them is

B = kA ← k is the constant of variation

To find k use the condition A = 90 and B = 40, then

k = $\frac{B}{A}$ = $\frac{40}{90}$ = $\frac{4}{9}$

B = $\frac{4}{9}$A ← equation of variation

Answer 2

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