Math Practice 101
Homework Explained - Math Practice 101

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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 (request help)

    A \(\frac{7}{16}\)-inch-long bolt is used in a machine. What is the length of the bolt written as a decimal?
  •    -inch-long
  • Question 21 (request help)

    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 (request help)

    The distance to the nearest gas station is \(2\frac{4}{5}\) kilometers. What is this distance written as a decimal?
  •    
  • Question 23 (request help)

    A baseball pitcher has pitched \(98\frac{2}{3}\) innings. What is the number of innings written as a decimal?
  •    
  • Question 24 (request help)

    A heartbeat takes 0.8 second. How many seconds is this written as a fraction?
  • Question 25 (request help)

    There are 26.2 miles in a marathon. Write the number of miles using a fraction.
  • Question 26 (request help)

    The average score on a biology test was \(72.\overline{1}\) . Write the average score using a fraction.
  • Question 27 (request help)

    The metal in a penny is worth about 0.505 cent. How many cents is this written as a fraction?
  • Question 28 (request help)

    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?
  • \(x^2\)=   
  • Question 28 (request help)

    b. Solve the equation you wrote in part a. How many solutions does the equation have?
  • x=\(\pm\)   
  • Question 28 (request help)

    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 (request help)

    d. What is the length of the wood trim needed to go around the painting?
  • P=   inches

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