document.write( "Question 151377: A merchant sold his entire stock of shirts and ties for $1000, the shirts being priced at 3 for $10 and the ties at $2 each. If he had sold only 1/2 of the shirts and 2/3 of the ties he would have collected $600. How many of each kind did he sell? \n" ); document.write( "
Algebra.Com's Answer #111284 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! A merchant sold his entire stock of shirts and ties for $1000, the shirts being priced at 3 for $10 and the ties at $2 each. If he had sold only 1/2 of the shirts and 2/3 of the ties he would have collected $600. How many of each kind did he sell? \n" ); document.write( "; \n" ); document.write( "Let x = no. of shirts sold \n" ); document.write( "let y = no. of ties \n" ); document.write( ": \n" ); document.write( "\"A merchant sold his entire stock of shirts and ties for $1000, the shirts being priced at 3 for $10 and the ties at $2 each\" \n" ); document.write( "10( \n" ); document.write( " \n" ); document.write( "multiply equation by 3 to get rid of the denominator \n" ); document.write( "10x + 6y = 3000; (1st equation) \n" ); document.write( ": \n" ); document.write( "\"If he had sold only 1/2 of the shirts and 2/3 of the ties he would have collected $600. How many of each kind did he sell?\" \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "Reduce fraction \n" ); document.write( " \n" ); document.write( "Multiply equation by 3 to get rid of the denominator \n" ); document.write( "5x + 4y = 1800 \n" ); document.write( ": \n" ); document.write( "multiply above equation by 2 and subtract the 1st equation: \n" ); document.write( "10x + 8y = 3600 \n" ); document.write( "10x + 6y = 3000 \n" ); document.write( "-----------------subtraction eliminates x \n" ); document.write( "0x + 2y = 600 \n" ); document.write( "y = 300 ties sold \n" ); document.write( ": \n" ); document.write( "Find x, use eq: 10x + 6y = 3000 \n" ); document.write( "10x + 6(300) = 3000 \n" ); document.write( "10x + 1800 = 3000 \n" ); document.write( "10x = 3000 - 1800 \n" ); document.write( "10x = 3000 - 1800 \n" ); document.write( "10x = 1200 \n" ); document.write( "x = \n" ); document.write( "x = 120 shirts sold \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "Check solution in \n" ); document.write( "5x + 4y = 1800 \n" ); document.write( "5(120) + 4(300) = \n" ); document.write( "600 + 1200 = 1800 \n" ); document.write( " |