Comparing and scaling

A relationship between one part of the whole and the whole is a...

• part to part ratio
• part to whole ratio

A rule containing variables that represent a mathematical relationship is a...

• ratio
• equation
• part to part ratio 
• part to whole ratio

You can write ratios in ______ different ways.

• 1
• 2
• 3

A number used to make comparisons between 2 quantities is a...

• equation
• ratio
• part to part
• proportion

Justin measured a house and its lot and made a scale drawing. The scale of the drawing was 5 inches = 3 feet. If the backyard is 80 inches in the drawing, how long is the actual yard?

• 21 feet
• 48 feet
• 66 feet
• Whale

There are 75 Sour Patch Kids in a 15 oz bag. Which proportion is written correctly so that you can find the number of Sour Patch Kids in a 7 oz bag?

• A
• B
• C

A car goes 50 miles in 40 minutes. What is the speed of the car in miles per minute? 

• 2.25 miles per min
• 1.75 miles per min
• 2.75 miles per min
• 1.25 miles per min

Target sells 7 CD's for $65.50. Write an equation that you can use to calculate the cost C for any purchase of n CD's at Target. 

• 9.36n = C
• 0.11n = C
• 9.36C = n
• Cn= 9.36

A survey of 120 players in a soccer league asked which drink they preferred during and after the game. What percent of the students preferred water after the game?

• 30%
• 45%
• 25%
• 50%

A survey of 120 players in a soccer league asked which drink they preferred during and after the game. What fraction of students preferred juice during the game?  

• 1/12
• 10/12
• 1/3