Ratios and Proportions

Solve the proportion for y.

• 3

• 5.3

• 1.08

• 27

Solve the proportion for k.

• k=5

• k=3.3333333

• k=60

• k=90

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

Are the ratios in proportion?

• Yes, they are equal

• No, they are not equal

• I cannot answer that question from the information given

Are these ratios equivalent?

3:4 and 6:12

• Yes

• No

Mrs. Shelly paid $3 for 6 muffins and Mrs. Kloske paid $9 for 18 muffins.  

• yes, equivalent

• no, not equivalent

Solve for x

• x=6

• x =1/6

• x = 7

• x=9

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

Solve the proportion.

• k=5

• k=3.3333333

• k=60

• k=90

• 4
• 12