Question

toni can carry up to 18 lb in her backpack. her lunch weighs 1lb her gym clothes weigh 2 lb and her books weigh 3 lb each. how many books can she carry in her backpack?

Answer 1

18 - (1+2) = 18-3 = 15
the books weigh 15 lb

15/3 = 5

Each book weigh 5 lb