document.write( "Question 479311: I am having trouble completing this word problems for my assignment. I have to use two out of three of the following methods. Substitution, graphic, elimination. Here is the word problem. Quick Copy recently charged $0.49 per page for color pages and $0.07 per page for black-and-white copies. If Shirlee's bill for 90 copies was $11.34, how many copies of each type was made? \n" ); document.write( "
Algebra.Com's Answer #328418 by jorel1380(3719)![]() ![]() You can put this solution on YOUR website! n+p=90 \n" ); document.write( "49n+7p=1134 \n" ); document.write( "7n+7p=630 \n" ); document.write( "42n=504 \n" ); document.write( "n=12 \n" ); document.write( "p=78 \n" ); document.write( "Shirlee made 12 color copies and 78 black-and-white copies.. \n" ); document.write( " |