Question

George is reading a book. At the end of 3 hours he has read 90 pages, and at the end of 5

hours he has read 238 pages. What is the average rate of change? Type your numerical
answer below.

Answer 1

74 pages/hour

Explanation:

The average rate of change is the difference in the numbers of pages divided by the difference in the numbers of hours.

At the end of 3 hours, 90 pages were read.

At he end of 5 hours, 238 pages were read.

Difference in hours: 5 hours - 3 hours = 2 hours.

Difference in pages: 238 pages - 90 pages = 148 pages

The average rate of change is the difference in pages divided by the difference in hours.

average rate of change = (148 pages)/(2 hours) = 74 pages/hour