Ratios and Rates

A comparison of two quantities (amounts), often written in the form of a fraction.

• Ratio

• Proportion

• Rate

• Multiplicative Relationship

What mathematical operation do ratios involve?

• addition
• subtraction
• multiplication
• division

Which of the following is NOT a ratio?

• 7 to 8

• 9:4

• 6

  2

• 7 and 2

If you have 3 pennies, 4 nickels, and 5 dimes which represents the following ratio: nickels to total number of coins?

• 4:5
• 3:12
• 4:12
• 5:12

What is a specific type of ratio comparing two quantities that have different units of measure?

Ex. 60 words for every 2 minutes.

• Unit Rate

• Ratio

• Rate

• Expression

What is a rate where the denominator is 1.

Ex. 32 miles / 1 gallon of gas

• Fraction

• Rate

• Unit Rate

• Ratio

What word means "for one" or "for each"?

• Many

• Rate

• Per

• Ratio

Which of the following is NOT a unit rate?

• 4 dogs

  1 yard

• 0.3 miles

  1 minute

• 1 minute

  3 feet

• 0.75 hour

  1 game

What is the ratio of red apples to green apples

• 7 apples to 3 green
• 4 red apples to 7 apples
• 4 red apples to 3 green apples
• 3 green apples to 4 red apples

Ella has 5 balloons. Taylor has 7 balloons. Write the ratio of Ella's balloons to Taylor's balloons.

• 7:5
• 5:7
• 3:5
• 5:3