Math Practice 101
Homework Explained - Math Practice 101

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Grade 7 McGraw Hill Glencoe - Answer Keys
Chapter 2: Percents; Lesson 2: Percent and Estimation


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Extra Practice

Estimate

  • Question 24 (request help)
  • \(\frac{1}{2}\text{ % of } 412 \approx\)    
  • Question 27 (request help)

    You use 43 muscles to frown. When you smile, you use 32% of these same muscles. About how many muscles do you use when you smile?
  • About    muscles
  • Question 28 (request help)

    Justify Conclusions The coastline of the Atlantic Coast is 2,069 miles long. Approximately \(\frac{6}{10}\) % of the coastline lies in New Hampshire. About how many miles of the coastline lie in New Hampshire? Explain how you estimated.
  • \(\text{About}\)   \(\text{miles}\)
  • Question 29 (request help)

    The table shows the number of passes attempted and the percent completed by the top quarterbacks in the NFL for a recent season.


    a. Estimate the number of passes that Tom Brady completed.
  •    
  • Question 29 (request help)

    b. Is your estimate greater or less than the actual number of passes he completed? Explain.
  •    
  • Question 29 (request help)

    c. Without calculating, determine whether Tony Romo or David Garrard completed more passes. Justify your reasoning.
  • Tony Romo completed   than David Garrard

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