document.write( "Question 831795: hello I am helping my 7th grader with a math project but I have forgotten how to do this problem: if he is buying a t shirt for $5 and he sells it for $12 how do we equate the percentage of his markup? please and thank you very much \n" ); document.write( "
Algebra.Com's Answer #501639 by rothauserc(4718)![]() ![]() You can put this solution on YOUR website! let x be the percent markup, then we have \n" ); document.write( "5 + 5*(x/100) = 12 \n" ); document.write( "subtract 5 from both sides of = \n" ); document.write( "5*(x/100) = 7 \n" ); document.write( "multiply both sides of = by 100 \n" ); document.write( "5x = 700 \n" ); document.write( "x = 140 \n" ); document.write( "the markup is 140% \n" ); document.write( " \n" ); document.write( " |