### Home > PC3 > Chapter 9 > Lesson 9.1.4 > Problem9-93

9-93.

A woman cycles $10$ mi/h faster than she runs. Every morning she cycles $10$ miles and runs $2.25$ miles for a total of $1$ hour of exercise. How fast does she run?

$\frac{\text{cycling distance}}{\text{cycling rate}}+\frac{\text{running distance}}{\text{running rate}}=\text{ total time}$