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Mary Lou baker rides a bicycle and travels at twice the speed of Wayne who is roller skates Mary and Wayne begin the race at the same time and after 3 hours Mary is 18 miles ahead of Wayne what is Wayne's speed ?

Sagot :

Since3122015id
[tex]M=2W \\ \\ \frac{18}{3}=\\6\\W+6=M\\W=6\\M=12[/tex]

6 miles per hour.