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25 February, 01:32

Unit 2 | Lesson 10

Lesson Assessment:

Core Focus: Problem Solving with Equations Quiz

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Choose the answer.

1.

Marco and Drew stacked boxes on a shelf. Marco lifted 9 boxes and Drew lifted 14 boxes. The boxes that Drew lifted each weighed 8 lb less than the boxes Marco lifted.

Which expression represents the total number of pounds Drew lifted?

Let m represent the weight of the boxes that Marco lifted.

A.

m - 8

B.

14 (m - 8)

C.

9 (m + 8)

D.

112m

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Answers (1)
  1. 25 February, 01:48
    0
    The answer is B. 14 (m - 8)

    m represent the weight of the boxes that Marco lifted.

    d represent the weight of the boxes that Drew lifted.

    The boxes that Drew lifted each weighed 8 lb less than the boxes Marco lifted:

    d = m - 8

    So the weight of one box that Drew lifted is (m - 8). Since he lifted boxes, the total number of pounds Drew lifted is 14 (m - 8)
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