Question

Seraphina is driving two hours to visit her family. For the first hour, she traveled at a speed of 56 miles per hour. Then, in the second hour, she traveled at a speed of 71 miles per hour. What is the percentage increase of Seraphina's speed? If necessary, round to the nearest tenth of a percent.

Answer 1

16.1%

Explanation:

Answer 2

26.71%

Explanation:

Find the increase in speed by subtracting 56 mph from 71 mph. This is 15 mph.

Then:

15 mph

----------- = 0.2671

56 mph

The increase in speed was 26.7%