Question

Solve A=12bh for b when A=126 and h=18.

Answer 1

isolate b

`b = (a)/(12h)`
b=.583

Answer 2

b=14

Explanation:

A = 1/2 bh

We know A =126 and h = 18

126 = 1/2 b* 18

126 = 9b

Divide each side by 9

126/9 = 9b/9

14 =b