Question

Sarah the cheetah ran 100 meters at a speed of 16.8 meters per second. An olympian ran the 100-meter dash in 9.6 seconds. How much faster was Sarah the cheetah’s speed, to the nearest tenth of a meter per second?
0.9 meters per second
1.6 meters per second
6.4 meters per second
10.4 meters per second

Answer 1

First, let's calculate the speed of the Olympian who ran the 100-meter dash in 9.6 seconds.

Speed of the Olympian = Distance / Time
= 100 meters / 9.6 seconds
≈ 10.4167 meters per second

Now, we know Sarah the cheetah's speed is 16.8 meters per second.

Next, we'll find the difference in their speeds:

Difference = Sarah's speed - Olympian's speed
= 16.8 meters per second - 10.4167 meters per second
≈ 6.3833 meters per second

Rounding this to the nearest tenth gives:

6.4 meters per second

So, Sarah the cheetah was **6.4 meters per second** faster than the Olympian.