SOLUTION: tom drove from palm desert to phoenix for 6 hours . if he increases his speed by 20 miles per hour,he can cover the same distances= in 4.5 hrs. what was his speed?

SOLUTION: tom drove from palm desert to phoenix for 6 hours . if he increases his speed by 20 miles per hour,he can cover the same distances= in 4.5 hrs. what was his speed?

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Question 846264: tom drove from palm desert to phoenix for 6 hours . if he increases his speed by 20 miles per hour,he can cover the same distances= in 4.5 hrs. what was his speed?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
4.5*(r+20)=6r
r=60

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