Final answer:
To find out how many pages Penelope will read in one hour, divide the number of pages she read by the fraction representing the time it took.
Step-by-step explanation:
To find out how many pages Penelope will read in one hour, we need to convert the time she took to read the given number of pages into one hour. Penelope read 38 pages in 1 3/5 hours, which is equivalent to 8/5 hours.
To find out how many pages she will read in one hour, we need to divide the number of pages she read by the fraction representing the time it took. So, 38 divided by 8/5 gives us 47.5 pages. Therefore, Penelope will read 47.5 pages in one hour if she continues at the same rate.