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?(1 point)
Responses
2 questions
2 minutes
1/2
of a question
1/2
of a minute
To find out how many questions Rachel answers in one minute, we can divide the number of questions she answered in 15 minutes by 15.
7 1/2 questions รท 15 minutes = 1/2 question
Therefore, Rachel answers 1/2 of a question in one minute.
To find out how many questions Rachel answers in one minute, you can divide the number of questions she answers in 15 minutes by 15.
Rachel finished 7 1/2 questions in 15 minutes.
So, 7 1/2 questions / 15 minutes = 1/2 of a question per minute.
Therefore, Rachel answers 1/2 of a question in one minute.
To find out how many questions Rachel answers in one minute, we need to divide the total number of questions she answered (7 1/2) by the time it took her to finish (15 minutes).
To divide fractions, we can convert the mixed number (7 1/2) into an improper fraction.
Converting 7 1/2 to an improper fraction:
7 * 2 = 14
14 + 1 = 15
So, 7 1/2 as an improper fraction is 15/2.
Now, we divide the fraction 15/2 by 15 to find out how many questions Rachel answers in one minute:
(15/2) / 15 = (15/2) * (1/15)
= 15 * 1 / 2 * 15
= 15/30
= 1/2
Therefore, Rachel answers 1/2 of a question in one minute.