Ratios, Rates and Unit Rates

Front

What is a ratio?

Back

A ratio is a comparison of two quantities by division, showing how many times one value contains or is contained within the other.

Front

How do you write a ratio?

Back

Ratios can be written in three ways: using a colon (e.g., 3:2), as a fraction (e.g., 3/2), or with the word 'to' (e.g., 3 to 2).

Front

What is the ratio of pears to all fruit if there are 4 apples, 2 bananas, and 5 pears?

Back

5:11

Front

What is a rate?

Back

A rate is a specific kind of ratio that compares two different units, such as miles per hour or dollars per hour.

Front

How do you find a unit rate?

Back

To find a unit rate, divide the quantity by the number of units to express the amount per one unit.

Front

If Jack jumps 40 times in 4 minutes, how many times does he jump in 1 minute?

Back

10 jumps per minute.

Front

What is a unit rate in the context of speed?

Back

A unit rate in speed is the distance traveled per unit of time, typically expressed in miles per hour (mph).

Front

If John traveled 567 miles in 9 hours, what is his speed in mph?

Back

63 mph.

Front

If Justin can type 408 words in 4 minutes, how many words can he type in 1 minute?

Back

102 words per minute.

Front

What is the unit rate for Elijah who earns $200 for 8 hours of work?

Back

$25 per hour.