### Home > CC1 > Chapter 9 > Lesson 9.2.2 > Problem9-45

9-45.

If Ms. Westhaggen can knit five hats in exactly $19$ hours, how long should it take her to knit $12$ hats? Show all of your work or explain your reasoning.

How long does it take her to knit each hat?

$\frac{19 \text{ hours}}{5 \text{ hats}}= 3\frac{4}{5}\ \text{hours to make each hat}$

Use this information to find out how long it takes to knit 12 hats.