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The mass of 42 books is 8,4 kg.what is the mass of 12 of these books.give me an answer in a written ratio
12 years ago

Answers

JJ
42 books have a mass of 8.4 kg.

8.4 kg/42 books = ?? kg/12 books

This is the original proportion.

Solve by dividing 42 into 8.4 That will give you the mass per book.
Next you can find the mass of 12 books by multiplying 12 times the answer for the mass of 1 book.

Then you can write your answer as a ratio of ?? kg/12 books
12 years ago

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