Luis can drive 3 times as fast as rico can ride his bike. If it takes rico 4 hours longer than Luis to travel 72 miles, how fast can ricoride his bike

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asked Jan 2, 2018 228k views

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GiveMeAllYourCats · Answer 1 · 2018-01-07T11:50:08+0000

Let Rico's speed be S
Then Luis' is: 3S
We then get: seventy-two over s equals seventy-two over three s plus four
216=72+12s Multiplying by LCD, 3S
216-72=12s
144 = 12S
S, or Rico's speed would be 144 over 12 or 12mph

Luis can drive 3 times as fast as rico can ride his bike. If it takes rico 4 hours longer than Luis to travel 72 miles, how fast can ricoride his bike

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