document.write( "Question 994078: Erasers cost 45 cents apiece. Notebooks cost 90 cents apiece. Karla spent $18 for a total of 28 erasers and notebooks. How many notebooks did she buy \n" ); document.write( "
Algebra.Com's Answer #741636 by derosejulia(1)![]() ![]() You can put this solution on YOUR website! .90x+.45y=18.00 \n" ); document.write( ".90x+.45(28)=18.00 \n" ); document.write( ".90x+12.6=18.00 \n" ); document.write( ".90x=5.4 \n" ); document.write( "x= 6 notebooks \n" ); document.write( " |