Question

Matthew is training to run a marathon. He runs 20 miles his first week of training. Each week, he increases the number of miles he runs by 4 miles. How many total miles did he run in 8 weeks of training

Answer 1

52 miles

Explanation:

Matthew runs 20 miles in the first week. We want to increase this number by 4 each week. For this question we will use m for a variable for miles.

This will look like

20 + 4m = total miles ran

if he ran 8 miles, we will enter this number into the variable m.

20 + 4 × 8 = 52

The total miles Matthew ran was 52 miles after 8 weeks.