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Mary has 21 yards of white ribbon and 3 yards of black ribbon. Which model could Mary use to find the difference between the lengths of the white and black ribbon? White: Black: White: Black: White: Black: White: Black: AA в) В D

Mary has 21 yards of white ribbon and 3 yards of black ribbon Which model could Mary use to find the difference between the lengths of the white and black ribbo class=

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Answer:

[tex]D[/tex]

Explanation:

Here, we want to get the model that could be used to find the difference between the two

What we have to do here is to find the model that supports the breakdown

For the first one, we have two completely filled ones and one singly filled one out of 6

For the second one, we have 3 completely filled ones and 2 out of 3 filled ones (this is same as 3 completely filled, then 4 out of 6 filled)

The correct answer choice here is thus the last option

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