Problema Solution
An owner of a key rings Manu fracturing company found that the profit earned (in thousands of dollars) per day by selling n number of key rings is given by n^2-2n-3, where n is the number of key rings in thousands. Find the number of key rings sold on a particular day when the total profit is $5000.
Answer provided by our tutors
We need to solve the equation:
n^2-2n-3 = 5000
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click here to see the equation solved for n
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n = 78 rings approximately
We need to ignore the negative solution since the number of key rings can not be negative.
The number of key rings sold on that particular day was approximately 78.