### Home > ACC7 > Chapter 7 Unit 4 > Lesson CC2: 7.1.5 > Problem7-59

7-59.

LuAnn talked on her cell phone for $180$ minutes, using $\frac { 3 } { 7 }$ of her total monthly minutes. Find out how many total minutes LuAnn gets to talk in one month using at least two different methods.

$180$ minutes is $\frac{3}{7}$ of her total monthly minutes.

$180=\frac{3}{7}x$

$\left(\frac{7}{3}\right)180=\left(\frac{7}{3}\right)\frac{3}{7}x$

$x=420$ minutes