Question
The temperature falls from 0 degrees to - 12 1/4 degrees in 3 1/2 hours. Which expression finds the change in temperature per hour?
A. - 7/2 / 49/4
B. - 7/2 * 49/4
C. - 49/4 * 7/2
D. - 49/4 / 7/2
A. - 7/2 / 49/4
B. - 7/2 * 49/4
C. - 49/4 * 7/2
D. - 49/4 / 7/2
Answers
GPT 3.5
To find the change in temperature per hour, we need to find the change in temperature divided by the number of hours.
The change in temperature is 0 - (-12 1/4) = 0 + 12 1/4 = 12 1/4.
The number of hours is 3 1/2.
The expression to find the change in temperature per hour is therefore:
(12 1/4) / (3 1/2) = (49/4) / (7/2).
Thus, the correct answer is D. - 49/4 / 7/2.
The change in temperature is 0 - (-12 1/4) = 0 + 12 1/4 = 12 1/4.
The number of hours is 3 1/2.
The expression to find the change in temperature per hour is therefore:
(12 1/4) / (3 1/2) = (49/4) / (7/2).
Thus, the correct answer is D. - 49/4 / 7/2.