Proportionality: Ratios and Rates

Susie can complete 36 math questions in 12 minutes. How many questions can Susie complete in 1 minute (unit rate)?

• 3 questions

• 0.33 questions

• 432 questions

What is the price of 1 ticket (unit rate) if 6 tickets to the Great Pumpkin Farm cost $75?

• $ 7.50

• $ 12.50

• $ 450

• $ 10.25

Does the graph show a proportional relationship?

• Yes, the line goes through the origin and is a straight line.

• No, the line is straight, but does not go through the origin.

Are these ratios proportional?

• Yes, the cross products are equal

• No, the cross products are not equal

• You can't tell.

Does this table represent a proportional relationship?

• Yes, all ratios reduce to the same unit rate.

• No, the ratios do not reduce to the same unit rate.

How can I write 12 boys to 9 girls as a ratio?

• 12 to 9

• 12 : 9

• all of these are correct ways to write a ratio

Find the unit rate. (Reminder - divide)

$3.60 for 12 eggs

• $ 43.20

• $ 0.30

• $ 3.33

Find the cost of 1 bottle (unit rate) of gatorade.

$9.36 for 18 bottles

• $ 0.52

• $ 168.48

• $ 1.92

Mrs. Darling can drive 280 miles in 4 hours. How many miles can she drive in 1 hour (unit rate - divide)?

• 70 miles

• 0.01 miles

• 1120 miles

Which is the CORRECT ratio for 42 wins to 13 losses?

• 13 to 42

• 13 : 42

• 42 : 13

• 42 to 55