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Grady rides his bike 60% faster than his little brother Noah. If Grady rides 15 miles further than Noah in two hours, how fast in miles per hour does Noah ride?

 
 Oct 9, 2021
 #1
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Given:    G = 1.6 N

 

In ONE hour Grady rides 7.5 miles MORE than Noah

         G = N + 7.5          sub in the red equation

        1.6 N = N + 7.5

           N = 12.5 m/hr

 
 Oct 9, 2021

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