Ratios, Unit Rate, and Proportions

Decide whether the table shows a proportional relationship between x and y.

• Yes, ratio x:y of 1:5

• Yes, ratio x:y of 5:1

• Yes, ratio x:y of 1:1

• Not a proportional relationship

Which proportional relationship properly represents the scenario below?

Anthony rode his bicycle 45 miles in 5 hours. At that rate, how long would he have to ride to go 108 miles?

• Add 45 to both sides

• Divide both sides by 45

• Multiply both sides by 45

• Subtract both sides by 45

Anthony rode his bicycle 45 miles in 5 hours. At that rate, how long would he have to ride to go 108 miles?

• 10 hours

• 18 hours

• 12 hours

• 16 hours

• There are 10 grams of protein per tablespoon of peanut butter.

• There are 50 grams of protein per tablespoon of peanut butter.

• There are 10 grams of protein per 50 tablespoons of peanut butter.

• There are 50 grams of protein per 10 tablespoons of peanut butter.

The graph shows a proportional relationship. What is the constant of proportionality?

k =

(a)  

Solve the proportion below:

• 5
• 10
• 15
• 6

Solve the proportion below:

• 418
• 2
• 38
• 11