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?
Accepted Solution
A:
Answer:-7/2 degrees per hourStep-by-step explanation:Divide the total change (-12 1/4 degrees) by the total time elapsed (3 1/2 hrs):-49/4 degrees -49(2)------------------------ = ------------- = -7/2 degrees per hour 7/2 hrs 4(7)