Question

WILL GIVE BRAINLYEST




If B varies directly as A and the value of A is 90 and B is 40 what is the equation / rule that describes this direct variation of B and A ​

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

How did you add the picture to the the page