SOLUTION: in 5 seconds and athlete runs 40 feet.How fast did he run?

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in 5 seconds and athlete runs 40 feet.How fast did he run?
(40 ft/5 seconds)*(1 mile/5280 ft)*(3600 seconds/1 hr)
= [40*1*3600 miles]/[5*5280*1 hr] = 144000 miles /26400 hrs
= 5.45 mph
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Cheers,
Stan H.