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Question 430353: lee is thinking of a numbers the product is 18 the quotient i 2 what are the two numbers
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Lee is thinking of two numbers. The product is 18;
the quotient is 2. What are the two numbers?
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Equations:
xy = 18
x/y = 2
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Solve for "x" and substitute to solve for "y":
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x = 18/y
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(18/y)/y = 2
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18/y = 2y
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18 = 2y^2
y^2 = 9
y = 3 or -3.
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Solve for "x"
xy = 18
If y = 3, x = 6
If y = -3, x = -6
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Cheers,
Stan H.
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