Ratios & Proportions

What is the likelihood of getting yellow?

• 1 out of 12

• 1 out of 8

• 3 out of 12

• 5 out of 7

Is the event INDEPENDENT or DEPENDENT?

Amy plays card games. She picks a card at random. Then without putting the first card back, she picks a second card at random.

• Independent

• Dependent

Match the following ratios:

• 20:16

• 8:3

• 9:21

• 2:6

• 21:12

• 7:4

• 24:72

• 3:7

• 24:9

• 5:4

To disinfect 1 quart of stream water to make it drinkable, you need to add 2 tablets of iodine. How many tablets do you need to disinfect 4 quarts?

• 4 tablets

• 5 tablets

• 6 tablets

• 8 tablets

Find the missing value(s) for the ratio table.

• a = 36

  b = 108

• a = 108

  b = 36

• a = 32

  b = 90

• a = 108

  b = 90

Find the missing value for the ratio.

• 3

• 9

• 7

• 21

What is C?

• 80
• 24
• 96
• 92

Find THREE equivalent ratios for 4/5. Select all that apply.

• 5:4

• 12:15

• 5 to 4

• 40 to 50

Juliet used a 3 to 1 ratio of white to black paint in order to make a shade of gray. Which of the following ratios would give her the same shade of gray? Pick two.

• 5 to 4

• 5 to 15

• 12 :4

• 7 to 6

The cafeteria orders a ratio of 4 to 7 of hot dogs to hamburgers for lunch. Which ratios are equivalent to the ratio of hot dogs to hamburgers? READ CAREFULLY!

• 16 hamburgers and 28 hot dogs

• 8 hot dogs and 14 hamburgers

• 7 hot dogs and 10 hamburgers

• 20 hamburgers and 35 hot dogs

• 28 hot dogs and 49 hamburgers