SOLUTION: An express bus travels 300 miles in the same amount of time as a car travels 270 miles. The rate of the car is 6 mph less than the rate of the bus. Find the rate of the car.

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Question 1159675: An express bus travels 300 miles in the same amount of time as a car travels 270 miles. The rate of the car is 6 mph less than the rate of the bus. Find the rate of the car.
Found 2 solutions by ikleyn, josgarithmetic:
Answer by ikleyn(52835)   (Show Source): You can put this solution on YOUR website!
.

Let x be the rate of the cae.


Then the rate of the bus is (x+6) mph.


Your equation is


     = .


Cross multiply


    300x = 270*(x+6)

    300x = 270x + 270*6

    30x  = 270*6

      x =  = 9*6 = 54     ANSWER

Solved.


Answer by josgarithmetic(39623)   (Show Source): You can put this solution on YOUR website!
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bus travels 300 miles in the same amount of time as a car travels 270 miles. The rate of the car is 6 mph less than the rate of the bus. Find the rate of the car.
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          SPEED        TIME           DISTANCE

BUS       r+6          300/(r+6)       300

CAR       r            270/r           270

Question asks for r, and is found from .
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