Final answer:
Penny reads at a unit rate of 22 pages per hour and she takes 1/22 hour to read one page.
Step-by-step explanation:
If Penny reads 11 pages in 1/2 hour, to find the unit rate for pages per hour, we need to calculate how many pages she would read in one full hour. Given that 1/2 hour is the same as 0.5 hours, we can multiply the number of pages read in 1/2 hour by 2 to find the unit rate per hour. Therefore, Penny would read 11 × 2 = 22 pages in one hour.
To find the unit rate for hours per page, we take the inverse of the pages per hour. This means we divide 1 hour by the number of pages read in one hour. So, Penny would take 1/22 hour to read one page.