Respuesta :

Answer: 15

Step-by-step explanation:

Since we are using fractions it makes sense to convert the 9 yards to fifths to better work with it, this would equal 45/5.

Finally we can divide 45 by 3 knowing that it takes 3 fifths to make a backpack.

This gives us 15, which is the total number of backpacks he can make.

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