Question 1163732
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The distance equation is


    62*t = 42*t + 40.


Left side is the distance traveled by Allison.

Right side is the sum of the distance traveled by Austin plus 40 miles.


Both distances, on the left and on the right, are the same.


Solve for t


    62t - 42t = 40

    20t       = 40

      t       = 40/20 = 2  hours.


Allison drove  2*62 = 124 miles.    <U>ANSWER</U>
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Solved.