Math Proportions

In the graph shown, what is the constant of proportionality?

• $50 per hour

• $40 per hour

• $1 per 50 hours

• $100 per hour

In my fish tank, the ratio of red fish to blue fish is 3:5. There are 20 blue fish. How many red fish are there?

• 18

• 12

• 4

• 15

You travel 150 miles on 5 gallons. How far did you travel per gallon?

• 15 miles

• 30 miles

• 3 miles

• 25 miles

Find the Unit Rate.
72 ounces for 12 servings    

• 7 ounces per serving

• 144 ounces for 24 servings

• 6 ounces per serving

• 36 ounces for 6 servings

Name the constant of proportionality.

• 5

• 10

• 2

• 1

Suppose a model of the Queen Elizabeth II is 17 inches in length. The actual length of the Queen Elizabeth II  is 1020 feet. What is the scale of the model?

• 1 ft = 60 inches

• 60 inches = 60 feet

• 1 inch = 60 feet

• 60 inches = 1020 feet

Is the graph proportional or non proportional?

• proportional

• non proportional

Is the graph proportional or non proportional?

• proportional

• non proportional

What is the Constant of Proportionality? k = y/x (or UNIT RATE?)

• k=46

• k=92

• k=0.2

• not proportional

A package of 6 water bottles costs $7.74. How much does each water bottle cost? (7.RP.2b)

• $0.74

• $0.80

• $1.29

• $1.74