Ratio and Proportion

Rosanne's Pizzeria made 39 pizzas. 33 of the pizzas had thin crust and the rest had thick crust. What is the ratio of the number of thick-crust pizzas to the total number of pizzas?

• 33:39

• 6:33

• 6:39

• 39:33

• 12:33

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Select all ratios equivalent to 13:8.

• 11:7

• 36:12

• 8:13

• 117:72

• 130:80

Tags

CCSS.6.RP.A.3A

Determine values for a, b, and c that satisfy the following ratio table.

10:11

50:55

60:a

b:88

c:99

• a = 65

  b = 76

  c = 87

• a = 110

  b = 220

  c = 440

• a = 66

  b = 80

  c = 90

• a = 66

  b = 77

  c = 88

• a = 11

  b = 11

  c = 11

Given ratios 6:8 and 33:44, which statement is true?

• The first ratio is greater

• The second ratio is greater

• The ratios form a proportion

• The ratios do not form a proportion

Tags

CCSS.6.RP.A.3A

Tags

CCSS.7.RP.A.2B

Oliver measured a house and its lot and made a scale drawing. He used the scale 3 centimeters : 2 meters. In the drawing, the back patio is 42 centimeters long. What is the length of the actual patio in meters?

(a)  

Tags

CCSS.7.RP.A.2C

Angie sells handmade bracelets at craft fairs. She bought 2 packs of charms. One pack has 150 small charms and 60 large charms. The other pack has the same ratio of small to large charms. The second pack has 50 small charms.

How many large charms are in the second pack?

(a)  

There are 60 cookies and 10 cupcakes leftover at a bake sale. What is the ratio of cupcakes to cookies? Your answer It must be in simplest form.

• 6 to 1

• 1:6

• 30:5

• 14:56

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

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

A bag of marbles comes with 3 blue marbles, 2 red marbles, and 5 yellow marbles. What is the ratio of red to yellow?

• 2 to 5

• 5 to 3

• 3 to 5

• 5 to 2

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2