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28-01-2022
Mathematics

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20 copies of the school yearbook together weigh 50 lb what is the weight of each book

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28-01-2022

Answer:

2.5 pounds per book

Step-by-step explanation:

Set up a proportion

20 copies / 50 pounds = 1 copy / x pounds

Cross multiply

20x = 50

Divide both sides by 20

x = 2.5 pounds

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