How much for 1? (constant of proportionality)

Answer Key - Grade 7 Math Worksheet

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

1. Read this first

   Use the table

   days	inches
   4	3
   12	9
   20	15

2. 1.

   Pia's bean plant grows at a steady rate, and it has big plans. The table shows days and inches. How many inches does it grow in 1 day?

   3/4
3. 2.

   Kira reads a comic book in Spanish class at a steady pace, one new word at a time. The table shows minutes and pages. How many pages go with 1 minute?

   2/3
4. 3.

   Jun's rain barrel fills during a storm. The graph shows minutes and gallons. How many gallons go with 1 minute?

   2/5
5. 4.

   Ari rides a bike trail at a steady speed with snacks packed. The graph shows hours and miles. How many miles go with 1 hour?

   8
6. 5.

   Noah's speed-walking club swings its arms a lot. Its rule y = 9x ÷ 2 gives miles y after x hours. How many miles go with 1 hour?

   4 1/2
7. 6.

   Milo's orange punch rule is y = 3x ÷ 5, where x is cups of punch and y is cups of orange juice. How much orange juice goes with 1 cup of punch, in cups?

   3/5
8. 7.

   Esme power-walks 2/3 mile in 1/6 hour around the park. How many miles does Esme walk in 1 hour?

   4
9. 8.

   Bo makes 1/2 batch of pancakes with 2/3 cup of milk. The pancakes come out round-ish. How much milk goes with 1 batch, in cups?

   1 1/3
10. 9.

    Ari's pet snail crawls 1/2 inch in 2/3 minute toward a lettuce leaf. How many inches does it crawl in 1 minute?

    3/4
11. 10.

    Jun speed-walks around the lake, waving at every duck. The double number line shows hours and miles. How many miles go with 1 hour?

    4 1/2