Question

Which speed is the fastest: A. 18 feet in 20 minutes B. 90 feet in 2.5 hours X. 20 feet in 1.5 hours D. 3 2/3 feet in 15 minutes

Show your work

Answer 1

Convert each item to feet/minute:-

A = 18/20 = 0.9 ft/min
B = 90 / (2.5 * 60) = 90 / 150 = 0.6 ft/min
C = 20 / 90 = 0.22 ft/min
D = 3 2/3 / 15 = 11/3 * 1/15 = 0.24 ft/min

So the answer is A.

Answer 2

answer is c.
so you are going to divide minutes over feet to get feet per minute.
20/18=0.9 ft per min
150/90=1.67 ft per min
90/20=4.5 ft per min
15/3 and two-thirds= 4.09