Write y = kx for a steady rate

Answer Key - Grade 7 Math Worksheet

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

1. Read this first

   Use the table

   hours	cups
   2	3
   4	6
   6	9

2. 1.

   Ren's faucet drips into a bowl, one plink at a time. The table shows hours and cups. Let h be hours and c be cups. What equation gives c for any h?

   c = 3h ÷ 2
3. 2.

   Bo tests a cookie recipe. The table shows cups of flour and cups of sugar. Let f be flour and c be sugar. What equation gives c for any f?

   c = 3f ÷ 4
4. 3.

   Esme mixes orange punch for the class party. The table shows cups of juice and cups of water. Let x be juice and y be water. What equation gives y for any x?

   y = 5x ÷ 4
5. 4.

   Luz mixes 2 cups of juice with 5 cups of water for punch. Let w be cups of water and q be cups of juice. What equation gives q for any w?

   q = 2w ÷ 5
6. 5.

   Noah bikes at a steady speed. The equation is d = 12h, where h is hours and d is miles. How many miles after 3/4 hour?

   9
7. 6.

   Milo's cookie rule is c = 3f ÷ 4, where f is cups of flour and c is cups of sugar. How many cups of sugar go with 8 cups of flour?

   6
8. 7.

   Kira's hose fills at a steady rate: g = 5u, where u is minutes and g is gallons. How many gallons after 4 minutes?

   20
9. 8.

   Tala reads by the rule y = 2x ÷ 3, where x is days and y is chapters. How many chapters after 21 days?

   14
10. 9.

    Ari's bike trip follows d = 9h, where h is hours and d is miles. Which story fits the rule?

    • Add 9 to the hours to get the miles
    • 9 hours for each mile
    • 9 miles for each hour
    • 1/9 mile for each hour
11. 10.

    Esme's circle follows g = 5u ÷ 2, where u is minutes and g is gallons. Which story fits the rule?

    • 5/2 minutes for each gallon
    • Add 5/2 to the minutes to get the gallons
    • 2/5 gallon for each minute
    • 5/2 gallons for each minute