Question

Three boxes of baseball cards weigh 90 pounds . How many pounds do 4 boxes weigh

Answer 1

120 pounds

Explanation:

if 3 boxes together weigh 90 pounds then each box weighs 30 pounds because 30×3=90 (30+30+30) and if you multiply 30×4 you get 120 because 30+30+30+30=120

90÷3=30

30×4=120

Answer 2

120 lb

Explanation:

3 boxes ----> 90 lb

1 box -------> 90 ÷ 3 = 30 lb

4 boxes -------> weight of 1 box x 4 = 3 x 4 = 120 lb