Question

A running cheetah begins to slow down. For each meter the cheetah travels, its speed changes by −3.4−3.4 kilometers per hour. The cheetah travels a total of 21.5 meters. What is the total change in the cheetah's speed during this time?

A. 73.1

B. 71.9

C. 18.1

D. -18.1

E. -71.9

F. -73.1

Answer 1

-73,1 hope this helps

Answer 2

The speed reduces:
3.4 km/h per meter
Total reduction over 21.5 meters:
3.4 x 21.5 = 73.1
Because it is a reduction, it will be negative.
The answer is F. -73.1