Ratios & Proportions

Solve the proportion

• .75

• 1.88

• 1

• 6

Corresponding sides in similar figures are proportional

• True

• False

What is the zoom factor or scale factor from small to big of these 2 figures?

What is the zoom factor or scale factor from the large rectangle to the small rectangle?

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

To solve for missing info in a proportion statement you must first

• Cross multiply

• Divide everything

• Get rid of variables

• Guess

If a class has 14 redheads, 8 brunettes, and 6 blondes- What is the REDUCED ratio of redheads to brunettes?

• 4:7

• 14:8

• 8:14

• 7:4

Two out of every 3 students in Mr. Pearson’s ninth grade class recycle aluminum cans. If 48 students recycle aluminum cans, HOW MANY STUDENTS are in Mr. Pearson’s class?