math
posted by roy .
amy drove her car the same distance in six hours that juan drove his car in 5 1/2 hours. find the speed (rate) of amy's car, given that she drove 5 mi/h slower than juan.

math 
Reiny
let Juan's speed be x mph
then Amy's speed is (x5) mph
then 6(x5) = 5.5x
solve for x, sub it back into x5
(I got 55 mph for Amy)
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