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Grade 8 HMH Go Math - Answer Keys
Chapter 1: Real Numbers; Lesson 1:Rational and Irrational Numbers
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1.1 Independent Practice
Question 20
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A \(\frac{7}{16}\)-inch-long bolt is used in a machine. What is the length of the bolt written as a decimal?
Question 21
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The weight of an object on the moon is \(\frac{1}{6}\) its weight on Earth. Write \(\frac{1}{6}\) as a decimal.
Question 22
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The distance to the nearest gas station is \(2\frac{4}{5}\) kilometers. What is this distance written as a decimal?
Question 23
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A baseball pitcher has pitched \(98\frac{2}{3}\) innings. What is the number of innings written as a decimal?
Question 28
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Multistep An artist wants to frame a square painting with an area of 400 square inches. She wants to know the length of the wood trim that is needed to go around the painting.
a. If x is the length of one side of the painting, what equation can you set up to find the length of a side?
Question 28
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b. Solve the equation you wrote in part a. How many solutions does the equation have?
Question 28
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c. Do all of the solutions that you found in part b make sense in the context of the problem? Explain.
Type below:
Question 28
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d. What is the length of the wood trim needed to go around the painting?