SOLUTION: One positive integer is 5 times another positive integer and their product is 320. What are the positive integers?

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Question 792139: One positive integer is 5 times another positive integer and their product is 320. What are the positive integers?
Answer by CubeyThePenguin(3113) About Me  (Show Source):
You can put this solution on YOUR website!
x = 5y
xy = 320

Substitute the first equation into the second equation.

(5y)(y) = 320
5y^2 = 320
y^2 = 64
y = 8 (y must be positive)

The integers are (x, y) = (40, 8).