document.write( "Question 247203: Amanda went to the book sale. She bought two books and paid with a $10.00 bill. One book was a dollar more than the other and she got back 1.02 as change. How much did each book cost? \n" ); document.write( "
Algebra.Com's Answer #180391 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! 10.00-1.02=8.98 \n" ); document.write( "a=b+1 \n" ); document.write( "a+b=8.98 \n" ); document.write( "substitute b+1 for a \n" ); document.write( "b+1+b=8.98 \n" ); document.write( "2b+1=8.98 \n" ); document.write( "2b=7.98 \n" ); document.write( "b=7.98/2 \n" ); document.write( "b=3.99 tax included \n" ); document.write( "a=4.99 tax included \n" ); document.write( "check \n" ); document.write( "3.99+4.99=8.98 \n" ); document.write( "8.98=8.98 \n" ); document.write( "ok\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |