Respuesta :

Answer=67.5 mph

22 1/2 miles   1/3hours

(22 1/2)/(1/3)=67.5miles per hour

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another way to solve this would be....

    1/3              1
_______=________
 22 1/2            x

cross multiply
(1/3)x=22 1/2
divide both sides by 1/3
x=67.5miles per hour