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If 12 math books weigh 40 pounds, how much would 21 math books weigh?

If 12 math books weigh 40 pounds, how much would 21 math books weigh?
asked 163k views
3 votes
If 12 math books weigh 40 pounds, how much would 21 math books weigh?

asked
User Stenal P Jolly
by
8.3k points

1 Answer

4 votes

Answer:

70 pounds

Explanation:

12/4=3

40/4=10

3x7=21

10x7=70

answered
User Brian Mitchell
by
7.9k points
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