Answer:
≈ 10.23mph
Step-by-step explanation:
1760yrds in 1 mile
200yrds to miles is:
200/1760 = .1136miles
3600sec in 1 hr
40sec to hours is:
40/3600 = .011111hrs
Now we find her speed in miles per hour:
.1136mi/.01111hrs ≈ 10.23mph
She is running 5 yards a second Or 300 yards a minute
Divide 200 by 40 to get the rate of speed in seconds
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