Scaling Quantities and Percentages

A hummingbird's wings beat 280 times in 4 seconds. How many seconds does it take for the wings to beat 70 times?

• 40 seconds

• 10 seconds

• 4 seconds

• 1 second

There are 12 quarts in 3 gallons. How many quarts are in 1 gallon?

• 36 quarts

• 4 quarts

• 15 quarts

• 2 quarts

Recipe calls for 4 cups concentrate and 5 cups water:
160 people going to camp.  How many batches do you need to guarantee everyone gets 1 cup of juice.

• 17 batches

• 15 batches

• 18 batches

• 10 batches

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 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

What is the constant of proportionality (in miles per hour) based on the table?

• 45

• 90

• 135

• 2

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

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

• equation

• ratio

• part to part

• proportion

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

• part to part ratio

• part to whole ratio