Answer:
Carrie read at a rate of 21 2/3 pages per hour
Explanation:
1. Let's review the information given to us to answer the question correctly:
Time Ms. Graves gave her class to read = 18 minutes
Number of pages Carrie read in 18 minutes = 6 1/2 pages
2. At what rate, in pages per hour, did Carrie read?
Rate = Number of pages/Time given
For getting the exact rate per hour, we should use the Rule of Three Simple, this way:
Number of pages in 60 minutes * 18 = 6 1/2 * 60
Number of pages in 60 minutes = (6.5 * 60)/18
Number of pages in 60 minutes = 390/18 = 21.67 or 21 2/3
Carrie read at a rate of 21 2/3 pages per hour