Chapter 2: Q. 85 (page 128)
Huong is organizing paperback and hardback books for her club’s used book sale. The number of paperbacks is 12 less than three times the number of hardbacks. Huong had 162 paperbacks. How many hardback books were there?
The number of hardback books are 58.
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The length of the rectangle is 1.1 meters less than the width. The perimeter of a rectangle is 49.4 meters. Find the dimensions of the rectangle.
Guillermo bought textbooks and notebooks at the bookstore. The number of textbooks was three more than twice the number of notebooks. He bought seven textbooks. How many notebooks did he buy ?
Classify the below equation as a conditional equation, an identity, or a contradiction, and then state the solution.
In the following exercises, find (a) the amount of discount and (b) the discount rate (Round to the nearest tenth of a percent if
needed.)
Larry and Donna bought a sofa at the sale price of \(1,344. The original price of the sofa was \)1,920.
Classify the below equation as a conditional equation, an identity, or a contradiction, and then state the solution.
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