Maria drives to school in 20 minutes. She drives home in 24 minutes. What was her average driving speed in terms of d, the distance from her home to school?

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asked Aug 28, 2020 185k views

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Maria drives to school in 20 minutes. She drives home in 24 minutes. What was her average driving speed in terms of d, the distance from her home to school?

Mathematics
high-school

Thatjeffsmith asked

by Thatjeffsmith

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Speed is distance/time so

[(d/20)+(d/24)]/2= 24d+20d/24•20•2=44d/20•24•2=22d/20•24=11d/240

Nechemia Hoffmann answered Sep 2, 2020

by Nechemia Hoffmann

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