Question

Laney is ordering books while she is on summer vacation. Reader's Book Club charges $4.00 per book and requires a one-time membership fee of $12. Perfect Pages requires no membership fee and charges $7.50 for each book ordered. The cost for Laney to order books depends on the number of books ordered, b. Which inequality can be used to find the minimum number of books that can be ordered so that the cost of ordering books from Reader's Book Club is less than the cost of ordering from Perfect Pages?

Answer 1

`12 + 4b < 7.50b`

Explanation:

Given

Reader' Book Club

`Membership = \$12`

`Book = \$4.00` per book

Perfect Page

`Book = \$7.50` per book

Required

Write an inequality to represent the situation

Represent the number of books with b

First, we need to write an expression for Reader's book

This is:

= Membership + Books Read

`12 + 4b`

For Perfect Page

This is

= Books Read

`7.50b`

For Reader's club to be less than Perfect Page, we have:

`12 + 4b < 7.50b`