Chapter 3: Q. 75 (page 333)
28 is 25% of what number?
The number is 112.
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The sum of two consecutive integers is 89. Find the integers.
Find three consecutive integers whose sum is −3.
Elvira and Aletheia live miles apart on the same street. They are in a study group that meets at a coffee shop between their houses. It took Elvira half an hour and Aletheia two-thirds of an hour to walk to the coffee shop. Aletheia’s speed is miles per hour slower than Elvira’s speed. Find both women’s walking speeds.
Find ⓐ the amount of discount and ⓑ the discount rate.
Nick bought a multi-room air conditioner at a sale price of \(. The original price of the air conditioner was \).
The length of a rectangle is eight more than twice the width. The perimeter is . Find the length and width.
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