document.write( "Question 128877This question is from textbook Introductory Algebra
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document.write( "An employer has a daily payroll of $1225 when employing some workers at $80 per day and others at $85 per day. When the number of $80 workers increased by 50% and the number of $85 workers is decreased by 1/5, the new daily payroll is $1540. How many were originally employed at each rate? \n" );
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Algebra.Com's Answer #94255 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! An employer has a daily payroll of $1225 when employing some workers at $80 per day and others at $85 per day. When the number of $80 workers increased by 50% and the number of $85 workers is decreased by 1/5, the new daily payroll is $1540. How many were originally employed at each rate? \n" ); document.write( "You may edit the question. Maybe convert \n" ); document.write( "--------------------------------------------------------- \n" ); document.write( "Let \"x\" be # of $80 workers ; Let \"y\" be # of $85 workers \n" ); document.write( "EQUATIONS: \n" ); document.write( "Original Payroll: 80x + 85y = 1225 \n" ); document.write( "Adjusted Payroll: 80(1.5)x + 85(0.8)y = 1540 \n" ); document.write( "-------------------------------------- \n" ); document.write( "80x + 85y = 1225 \n" ); document.write( "120x + 68y = 1540 \n" ); document.write( "--------------------- \n" ); document.write( "I used the Ti Matrix function to get: \n" ); document.write( "x = 10 (original # of $80 workers) \n" ); document.write( "y = 5 (original # of $85 workers) \n" ); document.write( "================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |