I need to know the answer to this problem.

Question

Grace's book shop had a sale on books all of the books were priced at $0.40 each . Betty spent as much of her $2.30 at Grace's book shop as she could. Write and solve an inequality to determine the maximum number of books that Betty can buy.

Answer 1

Let x be the number of books that Grace buys. Since each book costs $0.40, the cost of x books is $0.40x. The total cost must be less than or equal to $2.30:

Total Cost ≤ $2.30

$0.40x ≤ $2.30

Now solve for x. If you get a fraction or decimal, round down to the lower integer since you can't buy part of a book. The units of x is books.