SOLUTION: Assume that the stopping distance of a van varies directly with the square of the speed. A van traveling 20 miles per hour can stop in 30 feet. If the van is traveling 22 miles per

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Question 1144989: Assume that the stopping distance of a van varies directly with the square of the speed. A van traveling 20 miles per hour can stop in 30 feet. If the van is traveling 22 miles per​ hour, what is its stopping​ distance?
Answer by ikleyn(52756) About Me  (Show Source):
You can put this solution on YOUR website!
.

Write this direct proportion


    30%2F20%5E2 = x%2F22%5E2.


From the proportion,  find  x = %2830%2A22%5E2%29%2F20%5E2 = 36.3 ft.    ANSWER

There is a long way and a short way to solve the problem and to present the solution.

I chose a short way . . .