document.write( "Question 1045207: 2 men and 5 boys can do a piece of work in 4 days, while 4 men and 4 boys can do it in 3 days how long would it take one man alone to do it and how many days would it take one boy alone to do it? \n" ); document.write( "
Algebra.Com's Answer #660599 by josgarithmetic(39617)![]() ![]() ![]() You can put this solution on YOUR website! Time for 1 man to do 1 job, m \n" ); document.write( "time for 1 boy to do 1 job, b\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "R*T=J rule that relates rate, time, amount of job or amount of work\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "Not a linear system, but two equations in two unknown variables.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Use substitution to solve.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Pick an equation and solve for a variable. \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Substitute this formula into the other equation. \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Divide left and right by 4 \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Divide left and right by 2 \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |