Answer :
Final answer:
Penny reads at a rate of 39 pages per hour, and it takes her approximately 1/39th of an hour to read a single page.
Explanation:
The questions asks to find two different unit rates related to Penny's reading speed. First, we seek to find the unit rate, in pages per hour, at which Penny reads if she reads 13 pages in 1/3 of an hour. To find this rate, we multiply the number of pages read (13) by the reciprocal of the time taken, in this case, 3/1 (since 1/3 of an hour is the equivalent of 3 times per hour):
13 pages * 3 (hours) = 39 pages/hour.
This tells us that Penny reads at a rate of 39 pages per hour.
The second question asks for the unit rate, in hours per page, for the time it takes Penny to read a single page if she reads 13 pages in 1/3 of an hour. For this calculation, we take the total time in hours (1/3) and divide by the number of pages read (13):
1/3 hour / 13 pages = 1/39 hour/page.
This tells us that Penny takes approximately 1/39th of an hour to read a single page.
Learn more about Unit Rate here:
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