### Home > GB8I > Chapter 9 Unit 10 > Lesson INT1: 9.1.2 > Problem9-22

9-22.

Griffin ran $8$ miles. Griffin was a football fan so he wondered how many times he had run the equivalent of the full-length of a football field ($100$ yards). How many times did Griffin run the length of a football field when he ran $8$ miles?

Read the Math Notes box in Section 2.2.4 to find common conversion factors.
Read the Math Notes box in Section 2.3.1 on dimensional analysis.
How many yards are in a mile? If you don't know, then how many feet are in a mile?

$140.8$ times or $141$ times considering precision of measurement