Homework Explained - Math Practice 101

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Grade 7 HMH Go Math - Answer Keys
Chapter 3: Rational Numbers; Lesson 5: Divide Rational Numbers


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  Independent Practice  

  • Question 13 (request help)

    \(\large\frac{5}{-\large\frac{2}{8}} =\)

  •    
  • Question 16 (request help)

    \(\large\frac{-\large\frac{4}{5}}{-\large\frac{2}{3}} =\)

  • Question 20 (request help)

    \(\large\frac{\large\frac{-1}{4}}{\large\frac{23}{24}} =\)

  • Question 22 (request help)

    Alex usually runs for 21 hours a week, training for a marathon. If he is unable to run for 3 days, describe how to find out how many hours of training time he loses, and write the appropriate integer to describe how it affects his time.

  •    hours
  • Question 23 (request help)

    The running back for the Bulldogs football team carried the ball 9 times for a total loss of 15\(\frac{3}{4}\) yards. Find the average change in field position on each run.

  • yards per run
  • Question 24 (request help)

    The 6:00 a.m. temperatures for four consecutive days in the town of Lincoln were -12.1 °C, -7.8°C, -14.3°C, and -7.2°C. What was the average 6:00 a.m. temperature for the four days?

  •    °C
  • Question 25 (request help)

    Multistep

    A seafood restaurant claims an increase of $1,750.00 over its average profit during a week where it introduced a special of baked clams.

    a. If this is true, how much extra profit did it receive per day?

  •  per day
  • Question 25 (request help)

    b. If it had, instead, lost $150 per day, how much money would it have lost for the week?

  •  
  • Question 25 (request help)

    c. If its total loss was $490 for the week, what was its average daily change?

  •  per day
  • Question 26 (request help)

    A hot air balloon descended 99.6 meters in 12 seconds. What was the balloon’s average rate of descent in meters per second?

  •    m/s

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