To find out how many questions Rachel answers in one minute, we can divide the number of questions she answered (7 1/2) by the number of minutes it took her to finish (15).
First, let's convert the mixed fraction 7 1/2 to an improper fraction:
7 1/2 = (7 * 2 + 1)/2 = 15/2
Now, let's divide 15/2 by 15 to find out how many questions Rachel answers in one minute:
(15/2) / 15 = (15/2) * (1/15) = 15/30 = 1/2
Therefore, Rachel answers 1/2 of a question in one minute.
rachel has been studying for her math test. in 15 minutes she finished 7 1/2 questions. how many questions does she answer in one minute?
2 questions
2 minutes
1/2 of a question
1/2 of a minute
1 answer