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Mathematics 8 Online
OpenStudy (anonymous):

A long distance trucker traveled 160 miles in one direction during a snow storm. The return trip in rainy weather was accomplished at double the speed and took 4 hours less time. find the speed going.

OpenStudy (anonymous):

R=rate T=time R*T=160 2R(T-4)=160 set equal to each other and solve for S, then plug S into one of the equations and solve for T

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