document.write( "Question 1152292: Suppose a college bookstore buys a textbook from a publishing company and then marks up the price they paid for the book 33% and sells it to a student at the marked-up price. If the student pays $80 for the textbook, what did the bookstore pay for it? Round your answer to the nearest cent. \n" ); document.write( "
Algebra.Com's Answer #774278 by Theo(13342)\"\" \"About 
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c = cost
\n" ); document.write( "m = markup
\n" ); document.write( "s = selling price
\n" ); document.write( "s = 80
\n" ); document.write( "c + m = 80
\n" ); document.write( "m = .33 * c
\n" ); document.write( "replace m with .33 * c to get:
\n" ); document.write( "c + .33 * c = 80
\n" ); document.write( "simplify to get:
\n" ); document.write( "1.33 * c = 80
\n" ); document.write( "solve for c to get:
\n" ); document.write( "c = 80 / 1.33 = 60.15037594 = 60.15 rounded to the nearest cent.\r
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