Question

Solve the proportion r/72= 3/9​

Answer 1

`r=(7)/(3)`

Explanation:

When given the equation

`(r)/(72) =(3)/(9)`

We must multiply each side by 72 in order to isolate r.

`r =(3)/(9)*(7)/(1) \\\\r=(21)/(9) \\\\r=(7)/(3)`