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.

   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
2. 2.

   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
3. 3.

   Ren's butter cookie rule is x = 8y ÷ 5, where x is cups of flour and y is cups of butter. How many cups of butter go with 1 cup of flour?

   5/8
4. 4.

   A blizzard buries Milo's snowman up to its scarf. The rule x = 4y ÷ 7 gives the hours x for y inches of snow. How many inches fall in 1 hour?

   1 3/4
5. 5.

   Kira's school bus takes the highway to a field trip. The rule x = 10y ÷ 9 gives the minutes x for y miles. How many miles go with 1 minute?

   9/10
6. 6.

   Tala jogs 5/6 mile in 1/8 hour, racing the ice cream truck's song. What is the constant of proportionality, in miles per hour?

   6 2/3
7. 7.

   Luz sets a cup under a slow drip in the art room. It catches 1/3 cup of water in 3/4 hour. What is the constant of proportionality, in cups per hour?

   4/9
8. 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
9. 9.

   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
10. 10.

    Noah power-walks a charity loop at a steady pace. The double number line shows hours and miles. What is the constant of proportionality, in miles per hour?

    4 4/5