document.write( "Question 932133: One day a store sold 17 sweatshirts. White ones cost $9.95 and yellow ones cost $13.50.
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document.write( "In all, 211.75 worth of sweatshirts were sold. How many of each color were sold \n" );
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Algebra.Com's Answer #565988 by Stitch(470)![]() ![]() ![]() You can put this solution on YOUR website! Let W = number of White shirts \n" ); document.write( "Let Y = number of Yellow shirts\r \n" ); document.write( "\n" ); document.write( "Since we have two variables, we need two equations. \n" ); document.write( "Equation 1: \n" ); document.write( "Equation 2: \n" ); document.write( "--------------------------------------- \n" ); document.write( "Start by solving equation 1 for one of the variables \n" ); document.write( "Equation 1: \n" ); document.write( " \n" ); document.write( "Plug (17-Y) into equation 2 for W \n" ); document.write( "Equation 2: \n" ); document.write( " \n" ); document.write( "Simplify \n" ); document.write( " \n" ); document.write( "Combine like terms \n" ); document.write( " \n" ); document.write( "Subtract 169.15 from both sides \n" ); document.write( " \n" ); document.write( "Divide both sides by 3.55 \n" ); document.write( " \n" ); document.write( "------------------------ \n" ); document.write( "Using Y=12, solve for W \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |