SOLUTION: Leroy drove 448 miles in the same amount of time as Juanita drove 511 miles. If Juanita was driving 9 miles per hour faster than Leroy, how fast were they driving

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Leroy drove 448 miles in the same amount of time as Juanita drove 511 miles. If Juanita was driving 9 miles per hour faster than Leroy, how fast were they driving      Log On


   



Question 1128637: Leroy drove 448 miles in the same amount of time as Juanita drove 511 miles. If Juanita was driving 9 miles per hour faster than Leroy, how fast were they driving
Answer by ikleyn(52817) About Me  (Show Source):
You can put this solution on YOUR website!
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Let x be the Leroy' speed, in miles per hour.


Then the Juanita' speed is (x+9) mph.


Leroy spent 448%2Fx hours;  Juanita spent 511%2F%28x%2B9%29 hours.


The condition says


448%2Fx = 511%2F%28x%2B9%29.


Cross multiply and solve for x.