Homework Help: MATH -ALGEBRA

Posted by Anonymous on Wednesday, January 19, 2011 at 5:58pm.

Kadie bought 144 dougnuts for $80. her profit was $75 once she sold 100 dougnuts. What would be a equation for this?

A. P = -0.05n +80
B. P = 0.05n - 80
C. P = 0.75n
D. P = 1.55n - 80

Its D, but how do u get that answer, this is so confusing

MATH -ALGEBRA - PsyDAG, Thursday, January 20, 2011 at 5:43pm
P = $75
Expenses = $80

Profit = (price per doughnut sold)(n) - 80

However, you have not given the selling price for each doughnut. $1.55 seems like a very expensive doughnut.

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