Set up an inequality: I cannot $35 at the school book fair. posters are $5. how many books could i buy if they are $6.50 each and i want to buy one poster?

Question

Set up an inequality: I cannot spend more than $35 at the school Book Fair. Posters are $5. How many books could I buy if they are $6.50 each and I want to buy one poster?

Answer 1

If you want to buy books and 1 poster at the book fair the best we could do with $35 is

 

6.50(4) + 5

 

= $31 < $35

 

Thus we can buy 4 books and a poster for $35 and your change is $4