Chapter 1: Q24. (page 30)

DVD SALES A video store chain has three locations. Use the information in the table below to write and evaluate an expression to estimate the total number of DVDs sold over a 4 -day period. (Lesson 1–4)

Expert verified

The expression for the total DVDs sold over 4-day period is $4 (145 + 211 + 184)$ and Total DVDs sold over 4-day period are 2160.

Step by step solution

The table given in the question is as follows:

From the table given, we can find the total DVDs sold over a 4-day period

Firstly,

The total DVDs sold over 1-day period $= 145 + 211 + 184$

The total DVDs sold over 2-day period $= 2 (145 + 211 + 184)$

The total DVDs sold over 3-day period $= 3 (145 + 211 + 184)$

The total DVDs sold over 4-day period $= 4 (145 + 211 + 184)$

Therefore,

The expression for the total DVDs sold over 4-day period is $= 4 (145 + 211 + 184)$

From Step 2, we have

The expression for the total DVDs sold over 4-day period is $= 4 (145 + 211 + 184)$

i.e.

$= 4 (145 + 211 + 184) = 4 (145) + 4 (211) + 4 (184) = 580 + 844 + 736 = 2160$

Therefore,

The total DVDs sold over 4-day period are 2160.

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