Question

A cheetah has an average velocity of 70 mph. If a cheetah was chasing a water buffalo for 23 miles, how long was the cheetah chasing its prey? (Recall that there are 60 minutes in one hour.)

180 minutes
27 minutes
20 minutes
3 minutes

Answer 1

20 minutes

Step-by-step explanation:

Create a proportion.

x = time for 23 miles of travel

70 miles/hr = 23 miles/ x

--- Cross Multiply

70x = 23 --- Divide 70 on both sides

x = 0.32857 hrs....

multiply your value of "x" by 60 min/hr in order to convert to minutes

0.32857 hrs * 60min/1hr

hr(s) cancels out

x = 19.7143... ~ 20 mins