Question

A: b = 2:7
a² = 36
Work out the two possible values of b.

Answer 1

21

Explanation:

Given:a²=36

a=✓36

a=6

a:b=2:7

6:b=2:7

can be written as

6/b=2/7

2b=6*7

b=6*7/2

b=21