Question

Susie earns $9 per hour at her part-time job. On Tuesday, she spent $5 of her pay that day on lunch. If she took home $49 that day, how many hours did she work? Which mathematical sentence matches the problem?
5h + 9 = 49
9h + 5 = 49
9(h - 5) = 49
9h - 5 = 49

Answer 1

9h - 5 = 49 is the corret answer 

Your variable represents the number of hours she worked, not the number of times she spent 5 dollars.