Ratios and Rates to Measurement

What is a Ratio?

• Is a comparison of two quantities 

• To multiply two fractions 

• A number over another number

• Two decimals that can be multiplied

1 foot (ft) = ___ inches (in)

• 5

• 20

• 12

• 16

1/2 gallon = ___ cups

• 16

• 2

• 8

• 47

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 rate is a ratio of two quantities using different units.

• False

• True

A unit rate is a rate that compares a quantity to one.

• True

• False

To find a unit rate, write the rate as a __________.

• decimal

• fraction

• percent

• whole number

What is a ratio?

• A comparison of two quantities; The ratio of a to b can be written as a : b. Ratios can be part-to-part, part-to-whole, or whole-to-part comparisons.

• A ratio of two quantities using different units You read 3 books every 2 weeks.

• A process used to decide which conversion factor will produce the appropriate units

• A table used to find and organize equivalent ratios

What is a ratio table?

• A system of measurement that contains units for length, capacity, and weight

  inches, feet, quarts, gallons, ounces, pounds

• Rates that have the same unit rate 6 miles in 3 hours and 4 miles in 2 hours

• Two ratios that describe the same relationship

  2 : 3 and 4 : 6

• A table used to find and organize equivalent ratios

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