Proportionality

Constants as Fractions

100

What is the constant of proportionality: 36 miles/6 hours

What is 6 miles/1 hour?

200

It costs $28.00 for 7 apples. What is the constant of proportionality?

What is $4.00/1 apples?

300

What is the constant of proportionality: 24 miles per 8 hours

What is 3 miles/1 hour?

400

John traveled 36 miles and it took him 4 hours. What is the constant of proportionality

What is 9 miles/1 hour?

500

Sarah paid $25 for 10 cupcakes. What is the constant of proportionality

What is $2.50 per 1 cupcake?

Constants as Tables

100

what is the constant of proportionality: 

X:   1       3       5

Y:   12     36     60

What is 12?

200

Find the constant of proportionality: 

X     0        3           5

Y     0      2 ¹/₄     3 ³/₄

What is ³/₄?

300

what is the constant of proportionality: 

X   0.5   2.5      5

Y     5     25     50

What is 10?

400

Find the constant of proportionality:

X    1.5    18     72

Y      3     36    144

What is 2?

500

find the constant of proportionality: 

X    1.75    3.5      6

Y     126    252    432

What is 72?

Constants as Graphs

100

What is the constant of proportionality: y=5x

What is 5?

200

What is the constant of proportionality: y=10x

What is 10?

300

What is the constant of proportionality: y=15x

What is 15?

400

What is the constant of proportionality: y=30x

What is 30?

500

What is the constant of proportionality: y=50x

What is 50?

Word Problems

100

Terry is driving at a constant 20 mph. In 8 hours, how many miles will Terry have driven?

What is 160 miles?

200

Bob is going on a trail ride at a stable. A 30 minute trail ride costs $60.00. What is the constant of proportionality?

What is 2 dollars per minute?

300

Tammy went on 10 rides at the Washington County Fair. She paid $35.00. What was the cost of each ride?

What is $3.50 per ride?

400

Maria is selling kittens. Each kitty costs $21.99. How many kitties would there be if the total cost was $197.91?

What is 9 cats?

500

Farmer Brown is selling carrots. He wants to sell enough carrots to make $200. If he sells the carrots at a 2 carrots for $6 discount, how many carrots will he have to sell to make $200?

What is 67 or more carrots?

Circles

100

The circumference of a circle with diameter 4 cm.

4pi

200

The circumference of a circle with radius 8 meters.

What is 

16pi

300

The area of a circle with radius of 10 feet.

What is 

100pi

400

The area of a circle with diameter 12 inches.

What is 

36pi

500

The radius of a circle with a circumference of 

30pi

What is 15?