Mathematics

Grace Krueger

14 November, 04:15

Kelsey had $65 to spend on books. Each book cost $5.50, and there was a $7.50 fee for shipping. She let b equal the number of books she can purchase and wrote the inequality 5.5b+7.5<65 to represent the situation. Which statements describe the reasoning used to determine if Kelsey's inequality is correct? Check all that apply.

[ ]The inequality symbol is correct because she must spend less than $65.

[ ]The inequality symbol is incorrect because she can spend up to and including $65

[ ]The expression 5.50b + 7.5 is correct because $5.50 per book is 5.50b and that is added to the shipping fee of $7.50 to determine the total purchase price.

[ ]The expression 5.50b + 7.5 is incorrect because $5.50 per book and $7.50 should be combined to $9.50b to determine the total purchase price.

[ ]The inequality symbol is correct because she cannot spend more than $65.