document.write( "Question 535592: It takes Mr. Soriano 4 days longer to prepare an order of pies than it takes Mrs. Pascual. Together they baked some pies for 2 days and then Mrs. Pascual left. Mr. Soriano took 7 additional days to complete the order of pies. Working alone, how long would it have taken Mrs. Pascual to prepare the pies? \n" ); document.write( "
Algebra.Com's Answer #351962 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! It takes Mr. Soriano 4 days longer to prepare an order of pies than it takes Mrs. Pascual. \n" ); document.write( "Together they baked some pies for 2 days and then Mrs. Pascual left. \n" ); document.write( " Mr. Soriano took 7 additional days to complete the order of pies. \n" ); document.write( " Working alone, how long would it have taken Mrs. Pascual to prepare the pies? \n" ); document.write( ": \n" ); document.write( "Let p = Mrs. time to make the pies alone \n" ); document.write( "then \n" ); document.write( "(p+4) = Mr. time to do it \n" ); document.write( "Let the completed job = 1, (an order of pies) \n" ); document.write( ": \n" ); document.write( "A shared work equation, Mr. worked to total of 9 days \n" ); document.write( ": \n" ); document.write( " \n" ); document.write( "multiply by p(p+4) \n" ); document.write( "9p + 2(p+4) = p(p+4) \n" ); document.write( "9p + 2p + 8 = p^2 + 4p \n" ); document.write( "11p + 8 = p^2 + 4p \n" ); document.write( "combine like terms on the right \n" ); document.write( "0 = p^2 + 4p - 11p - 8 \n" ); document.write( "A quadratic equation \n" ); document.write( "p^2 - 7p - 8 = 0 \n" ); document.write( "Factors to \n" ); document.write( "(p-8)(p+1) = 0 \n" ); document.write( "the positive solution is all we want here \n" ); document.write( "p = 8 days for Mrs. working alone \n" ); document.write( " |