Question

If a/b= 8 and ac -5 = 11, then bc =?

Answer 1

bc = 2

Explanation:

From
`a/b = 8`

`a=8b` (times b on both sides)

We can then substitute
`a` for
`8b`:

`ac-5=11` (given equation)

`8bc-5=11`

`8bc=16`

`bc=2`

I hope this helps :)