How much for 1? (constant of proportionality)

Answer Key - Grade 7 Math Worksheet - Challenge Me

Circle the best answer, or write your answer on the line.

1. 1.

   Kira's hose fills a 5-gallon bucket in 1/2 minute, which is 10 gallons per minute. How many minutes does 1 gallon take?

   1/10
2. 2.

   Pia paints a garden fence: 1/6 gallon covers 5/6 of it, which is 5 fences per gallon. How many gallons does 1 whole fence need?

   1/5

3. Read this first

   Use the table

   hours	miles
   1/2	5
   2	20
   3	30

4. 3.

   Noah logs a long bike-trail day at a steady speed. The table shows hours and miles. What is the constant of proportionality, in miles per hour?

   10
5. 4.

   Jun's school printer runs at a steady speed and hums a little tune. The table shows minutes and pages. What is the constant of proportionality, in pages per minute?

   28
6. 5.

   Zee rides in a kids' bike race at a steady speed. The graph shows hours and miles. What is the constant of proportionality, in miles per hour?

   16
7. 6.

   Light snow dusts Bo's snowman at a steady rate. The graph shows hours and inches of snow. What is the constant of proportionality, in inches per hour?

   1/3
8. 7.

   Ari fills watering cans from a garden circle for the class garden. The graph shows minutes and gallons. What is the constant of proportionality, in gallons per minute?

   9
9. 8.

   Pia walks 2/5 mile in 1/8 hour around the park while counting dogs. What is the constant of proportionality, in miles per hour?

   3 1/5
10. 9.

    Esme catches a slow roof drip in a bucket after a storm. The double number line shows hours and cups of water. What is the constant of proportionality, in cups per hour?

    8/9
11. 10.

    Bo trains for a bike race on a flat road. The double number line shows hours and miles. What is the constant of proportionality, in miles per hour?

    15