Ratio Rate and Percent

Nancy earned 60 points on her last test. If there were 75 possible points, what was her percent grade?

• 20%

• 40%

• 60%

• 80%

What is 15% of 60?

• 9

• 10

• 8

• 15

Simplify

• 2:10

• 1:10

• 1:2

• 2:1

Thinking of equivalent ratios, 1 : 4 is equal to:

• 2 : 9

• 4 : 16

• 6 : 26

• 8 : 40

A tube contains 3 tennis balls. How many tennis balls are there in 32 tubes?

• 16

• 96

• 11

• 64

Ten soccer players were going to a soccer tournament with their three coaches. What is the ratio of coaches to players? 

• 10 : 3

• 10:13

• 3 : 10

• 3:13

A ratio that compares the inaccuracy of an estimate (amount of error) to the actual amount is called ​ ​ (a)  

• percent error

• percent of change

• markdown

• proportional

A comparison between two quantities, in which for every A units of one quantity, there are B units of another quantity is called a​ (a)  

• ratio

• proportion

• proportional relationship

• proportional

• unit rate

• constant of proportionality

An equation stating that two ratios or rates are equivalent is a ​ (a)  

• proportion

• ratio

• proportional relationship

• proportional

• unit rate

• nonproportional

• constant of proportionality

Two quantities are in a ​ (a)   if the two quantities vary and have a constant ratio between them.

• proportional relationship

• proportional

• unit rate

• nonproportional

• constant of proportionality