SOLUTION: A manufacturer finds that the profit in dollars for manufacturing n units is P = n squared -9n - 71. (Assume that n is a positive​ integer.) How many units are produce

Algebra ->  Problems-with-consecutive-odd-even-integers -> SOLUTION: A manufacturer finds that the profit in dollars for manufacturing n units is P = n squared -9n - 71. (Assume that n is a positive​ integer.) How many units are produce      Log On


   

Question 1129593: A manufacturer finds that the profit in dollars for manufacturing n units is
P = n squared -9n - 71. (Assume that n is a positive​ integer.) How many units are produced when the profit is $119?
There are units manufactured.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
A manufacturer finds that the profit in dollars for manufacturing n units is
P = n squared -9n - 71. (Assume that n is a positive​ integer.) How many units are produced when the profit is $119?
There are units manufactured.
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Solve for "n"::
n^2 -9n - 71 = 119
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n^2 -9n - 190 = 0
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(n-19)(n+10) = 0
Positive solution::
n = 19 (# of units)
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Cheers,
Stan H.
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