Math Practice 101
Homework Explained - Math Practice 101

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Grade 7 HMH Go Math - Answer Keys


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  • Question 15 (request help)

    Multistep

    Sandy charges each family that she babysits a flat fee of $10 for the night and an extra $5 per child. Kimmi charges $25 per night, no matter how many children a family has.

    a. Write a two-step equation that would compare what the two girls charge and find when their fees are the same.
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  • Question 15 (request help)

    b. How many children must a family have for Sandy and Kimmi to charge the same amount?
  •     children
  • Question 15 (request help)

    c. The Sanderson family has five children. Which babysitter should they choose if they wish to save some money on babysitting, and why?
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  H.O.T.  

  Focus on Higher Order Thinking  

  • Question 16 (request help)

    Analyze Relationships

    Each student wrote a two-step equation. Peter wrote the equation 4x - 2 = 10, and Andres wrote the equation 16x - 8 = 40. The teacher looked at their equations and asked them to compare them. Describe one way in which the equations are similar.
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  • Question 17 (request help)

    What’s the Error?

    Damon has 5 dimes and some nickels in his pocket, worth a total of $1.20. To find the number of nickels Damon has, a student wrote the equation 5n + 50 = 1.20. Find the error in the student’s equation.
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  • Question 18 (request help)

    Represent Real-World Problems

    Write a real-world problem you could answer by solving the equation -8x + 60 = 28.
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