document.write( "Question 1142738: A company has an order for 810 suits, another company has to make 900 suits in the same period of time. The first company has completed its task 3 days ahead of time and the second company 6 days ahead of time. How many suits does each company produce per day, if the second company makes 4 suits per day more than the first? \n" ); document.write( "
Algebra.Com's Answer #763470 by Theo(13342)![]() ![]() You can put this solution on YOUR website! i get the following.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "we have company A and company B.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "company A has an order for 810 suits. \n" ); document.write( "company B has an order for 900 suits in the same period of time.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "company A completes its task 3 days ahead of time. \n" ); document.write( "company B completes its task 7 days ahead of time.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "company B make 4 more suits per day than company A.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the general formula to use is R * T = Q\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "R is the number of suits produced per day. \n" ); document.write( "T is the number of days. \n" ); document.write( "Q is the number of suits produced.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "for company A, the formula becomes R * (T-3) = 810 \n" ); document.write( "for company B, the formula becomes (R+4) * (T-6) = 900\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "solve for R in the first equation to get R = 810/(T-3)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "replace R in the second equation by 810/(T-3) to get: \n" ); document.write( "(810/(T-3))+4) * (T-6) = 900 \n" ); document.write( "multiply both sides of this equation by (T-3) to get: \n" ); document.write( "(810 + 4 * (T-3)) * (T-6) = 900 * (T-3) \n" ); document.write( "simplify to get: \n" ); document.write( "(810 + 4*T - 12) * (T - 6) = 900*T - 2700 \n" ); document.write( "simplify further to get: \n" ); document.write( "(798 + 4*T) * (T - 6) = 900*T - 2700 \n" ); document.write( "simplify further to get: \n" ); document.write( "798*T - 4788 + 4*T^2 - 24*T = 900*T - 2700 \n" ); document.write( "subtract 900*T from both sides of the equation and add 2700 to both sides of the equation and order the terms in descending order of degree to get: \n" ); document.write( "4*T^2 - 126*% - 2088 = 0 \n" ); document.write( "factor this quadratic equation to get: \n" ); document.write( "T = 43.5 or T = -12\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "T has to be positive so T = 43.5 \n" ); document.write( "since R = 810 / (T-3), you get: \n" ); document.write( "R = 20\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "your solution appears to be that company A produces 20 suits per day and company B produces 24 suits per day.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "company A finishes 3 days ahead of time, so company A finishes in 40.5 days. \n" ); document.write( "company B finishes 6 days ahead of time, so company B finishes in 37.5 days.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "20 * 40.5 = 810 \n" ); document.write( "24 * 37.5 = 900\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the numbers check out so it appears the solution is good.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the solution is that company A produces 20 suits per day and company B produces 24 suits per day. \n" ); document.write( " |