Math Practice 101
Homework Explained - Math Practice 101

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Grade 7 McGraw Hill Glencoe - Answer Keys


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Extra Practice

For Exercises 10-12, use a table to solve.Then explain your reasoning.

  • Question 10 (request help)

    A vine grows 7.5 feet every 5 days. Is the length of the vine on the last day proportional to the number of days of growth?
  • Question 11 (request help)

    To convert a temperature in degrees Celsius to degrees Fahrenheit, multiply the Celsius temperature by \(\frac{9}{5}\) and then add 32°. Is a temperature in degrees Celsius proportional to its equivalent temperature in degrees Fahrenheit?
    • No
    • yes
  • Question 12 (request help)

    On Saturday, Querida gave away 416 coupons for a free appetizer at a local restaurant. The next day, she gave away about 52 coupons an hour.
    a. Is the number of coupons Querida gave away on Sunday proportional to the number of hours she worked that day?

     
    • yes
    • no
  • Question 12 (request help)

    b. Is the total number of coupons Querida gave away on Saturday and Sunday proportional to the number of hours she worked on Sunday?
    • no
    • yes
  • Question 13 (request help)

    Justify Conclusions The fee for ride tickets at a carnival is shown in the table at the right.
    a. Is the fee for ride tickets proportional to the number of tickets? Explain your reasoning.

     
    • no
    • yes
  • Question 13 (request help)

    b. Can you determine the fee for 30 ride tickets? Explain.
    • no
    • yes

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