Math Practice 101
Homework Explained - Math Practice 101

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Grade 7 McGraw Hill Glencoe - Answer Keys


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  • Question 9 (request help)

    At an amusement park, 360 visitors rode the roller coaster in 3 hours. Write and solve a proportion to find the number of visitors at this rate who will ride the roller coaster in 7 hours.
  •    \(\large\text{ visitors in 7 hours}\)
  • Question 10 (request help)

    Reason Abstractly Use the table to write a proportion relating the weights on two planets. Then find the missing weight. Round to the nearest tenth.
  • a. Earth: 90 pounds; Venus:   pounds

H.O.T. Problems Higher Order Thinking

  • Question 11 (request help)

    Justify Conclusions A powdered drink mix calls for a ratio of powder to water of 1:8. If there are 32 cups of powder, how many total cups of water are needed? Explain your reasoning.
  •    \(\large \text{ cups of water}\)

Persevere with Problems Solve each equation.

  • Question 12 (request help)

    \(\large\frac{2}{3}=\frac{18}{x+5}\)
  • \(\large x = \)   
  • Question 13 (request help)

    \(\large\frac{x-4}{10}=\frac{7}{5}\)
  • \(\large x = \)   
  • Question 14 (request help)

    \(\large\frac{4.5}{17-x}=\frac{3}{8}\)
  • \(\large x = \)   
  • Question 15 (request help)

    Justify Conclusion A rectangle has an area of 36 square units. As the length and the width change, what do you know about their product. Is the length proportional to the width. Justify your reasoning.
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