Jackie ran fifty yard at an average speed of 21 feet per second. what was her average speed in feet per minute? a.1,260 b.7.560 c.1.75 d.0.35
Answer:
1260
Step-by-step explanation:
Given : Jackie ran fifty yard at an average speed of 21 feet per second.
To Find: what was her average speed in feet per minute?
Solution:
Speed of Jackie = 21 feet per second.
60 second = 1 minute
1 second = \(\frac{1}{60} minute\)
Now we are supposed to convert the speed in feet per minute
Now , 21 feet per second = \(\frac{21}{\frac{1}{60}}\)feet per minute
= \(1260\) feet per minute
Hence her average speed in feet per minute is 1260 feet per minute
Thus Option A is correct.