Page 323 - NUMINO_WB_5B
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090-B3-1

1. Complete the table. Number of books Total price ($)
a. A book costs $2.5. Let x = number of 2
books. 3
4
b. Find the area of the rectangle.
y x
x
Width Length Area
2 1
3 2
4 3

xy

2. Express each of the following situations as an algebraic expression.
a. Thomas can walk 3 km in one hour. Let y = hours that Thomas walked.

b. There are 10 batteries. Let b = the number of batteries divided.

a. Kate is 4 years younger than her sister. Let x = age of Kate’s sister.
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