Ratio Proportion Geometry

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

Determine if the ratios are proportional.
4/5 and 15/20

• Yes

• No

Solve the proportion.

• 10

• -2

• 4

• -7

A class has 30 students. 18 are boys. What is the ratio of boys to girls?

• 12:18

• 3:2

• 30:18

• 18:7

Solve for x

• x=1

• x=3

• x=3/5

• x=2

What is the measure of x?

• 12

• 15

• 6

• 9

To measure the distance across a pond, a surveyor locates points A, B, C, D, and E as shown.  What is AB to the nearest meter?

• 10

• 12

• 15

• 18

A ratio is

• comparing a bunch of numbers

• a comparison between 2 quantities

• an estimation of an amount

• a variable

A proportion is a

• ratio statement

• an "if-then" statement

• a statement of 2 ratios

• a comparison

All of the following are proper representations of a ratio EXCEPT

• a/b

• a to b

• a:b

• a over b