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Chapter 2: Q 2.17 (page 106)
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The answer is
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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 ?
In the following exercises, use the Pythagorean theorem to find the length of the leg. Round to the nearest tenth if necessary.
Classify the equation as a conditional equation, an identity, or a contradiction and then state the solution :
The perimeter of a triangle is 39 feet. One side of the triangle is one foot longer than the second side. The third side is two feet longer than the second side. Find the length of each side.
Classify the below equation as a conditional equation, an identity, or a contradiction, and then state the solution.
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