document.write( "Question 654167: I have a linear system of equations project to do and we have to do it on a board. We have to graph it, do substitution and do elimination. My problem is the school store sells pencils for $0.45 and pens for $0.95. On Friday they sold 10 writing utensils earning a total of $8.50. How many of each item did they sell? \n" ); document.write( "
Algebra.Com's Answer #408639 by lynnlo(4176)![]() ![]() ![]() You can put this solution on YOUR website! pencils .45 pens .95 \n" ); document.write( "2 sold .90 8 sold $7.60 \n" ); document.write( " 10 items sold 2+8=10 8x.95=$7.60\r \n" ); document.write( "\n" ); document.write( " 2x.45=.90\r \n" ); document.write( "\n" ); document.write( " total $8.50 \n" ); document.write( " \n" ); document.write( " |