Question

How do you solve #3/0.72=12/b?

Answer 1

`b=2.88`

Explanation:

`"one way is to "color(blue)"cross-multiply"`

`•color(white)(x)a/b=c/drArrad=bc`

`"then"`

`3b=12xx0.72`

`"divide both sides by 3"`

`b=(cancel(12)^4xx0.72)/cancel(3)^1=4xx0.72=2.88`

`b=2.88" is the solution"`