SOLUTION: Vinnie drives his car 120 miles and has a mean of a certain speed. If the mean speed had been 6 mph more, he could have traveled 136 miles in the same length of time. What was his

Question 1029799: Vinnie drives his car 120 miles and has a mean of a certain speed. If the mean speed had been 6 mph more, he could have traveled 136 miles in the same length of time. What was his mean speed?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = distance in miles
Let = average rate in mi/hr
Let = time in hrs

----------------
also given:

------------------
The times were the same, so

Multiply both sides by

The mean speed was 45 mi/hr
------------------
check:

hrs
and

hrs
OK
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