document.write( "Question 518876: A university bookstore recently sold a wirebound graph-paper notebook for $2.60, and a college-ruled notebook for $2.45. At the start of spring semester, a combination of 75 of these notebooks were sold for a total of $191.25. How many of each type were sold? \n" ); document.write( "
Algebra.Com's Answer #345356 by Maths68(1474)\"\" \"About 
You can put this solution on YOUR website!
Price per wirebound graph-paper notebook = $2.60
\n" ); document.write( "Price per college-ruled notebook = 2.45$
\n" ); document.write( "Number of wirebound graph-paper notebook sold = x
\n" ); document.write( "Number of college-ruled notebook sold = 75-x
\n" ); document.write( "Total Amount = 191.25\r
\n" ); document.write( "\n" ); document.write( "2.60*(Number of WG notebook) + 2.45*(Number of CR notebook) = Total
\n" ); document.write( "2.60*(x) + 2.45*(75-x) = 191.25
\n" ); document.write( "2.60x+183.75-2.45x=191.25
\n" ); document.write( "2.60x-2.45x=191.25-183.75
\n" ); document.write( "0.15x=7.5
\n" ); document.write( "0.15x/0.15=7.5/0.15
\n" ); document.write( "x=50\r
\n" ); document.write( "\n" ); document.write( "Number of wirebound graph-paper notebook sold = x = 50
\n" ); document.write( "Number of college-ruled notebook sold = 75-x = 75-50 = 25\r
\n" ); document.write( "\n" ); document.write( "Check
\n" ); document.write( "=====
\n" ); document.write( "50*2.60 + 25*2.45 = 191.25
\n" ); document.write( "130+61.25=191.25
\n" ); document.write( "191.25=191.25
\n" ); document.write( " \n" ); document.write( "
\n" );