SOLUTION: 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

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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?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
10.00-1.02=8.98
a=b+1
a+b=8.98
substitute b+1 for a
b+1+b=8.98
2b+1=8.98
2b=7.98
b=7.98/2
b=3.99 tax included
a=4.99 tax included
check
3.99+4.99=8.98
8.98=8.98
ok