Question

Matthew is training to participate in a half marathon. Each week, Matthew increases the number of miles he runs in the previous week by the same percent. The table below shows the number of miles he runs in weeks 1 and 2.

Week Number of Miles Run
1 12.5
2 15.5Complete the sentence. Do not round your answer.
Matthew runs
miles in week 3.

Answer 1

He ran 14.58 miles.

Answer 2

I've seen this question before.

Answer 3

Each week, Matthew increases his miles "by the same percent", which tells us that the increase is based on a proportion of the previous week's miles. Let's first find this proportion by dividing the miles of week 2 by the miles of week 1: 15.5/12/5
Once we get that proportion, we can multiply by the current week miles, 15.5, to get the miles of week 3 (it would not be 14.58; the number of miles increases each week)

Answer 4

So if it would not be 14.58, then what would it be?

Answer 5

I could use some extra help with this question.