SOLUTION: The “break-even point” is the point at Which income equals expenses. Ridgemont High School is paying $13,200 for the writing and reasearch of their yearbook plus a printing fee of

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Question 1111254: The “break-even point” is the point at Which income equals expenses. Ridgemont High School is paying $13,200 for the writing and reasearch of their yearbook plus a printing fee of $25 per book. If they sell the books for $40 each, how many will they have to sell to break even? Explain.
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Cost = income is the break even point
Let +n+ = number of books sold
+25n+%2B+13200+=+40n+
+15n+=+13200+
+n+=+880+
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If they sell 880 books they will break even
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Note that if +n+=+879+ books, then
cost will exceed income
+25n+%2B+13200+%3E+40n+
+25%2A879+%2B+13200+%3E+40%2A879+
+21975+%2B+13200+%3E+35160+
+35175+%3E+35160+
OK