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1 vote
Toni can carry up to 18 lb in her backpack. Her lunch weighs 1 lb, her gym clothes weigh 2 lb, and her books (b) weigh 3 lb each. How many books can she carry in her backpack?

2 Answers

5 votes
The answer would be 5 books at 3lbs each is 15 and 1lb lunch and 2lb clothes.
User Daan
by
8.4k points
1 vote
Toni can carry up to 5 books

1+2+3b=18
combine 1 and 2
3+3b=18
subtract 3 from both sides
3b=15
divide 3 from both sides
b=5

User Bayrinat
by
8.2k points