Unit Rates

Front

What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity, often expressed as 'per' something, such as miles per hour or dollars per pound.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you calculate a unit rate from a total quantity?

Back

To calculate a unit rate, divide the total quantity by the number of units. For example, if you have 40 dollars for 5 pounds of concrete, the unit rate is 40 ÷ 5 = 8 dollars per pound.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If a car travels 240 miles in 3 hours, what is its speed in miles per hour?

Back

To find the speed, divide the distance by the time: 240 miles ÷ 3 hours = 80 miles per hour.

Tags

CCSS.6.RP.A.3B

Front

How many words can Julie type in an hour if she types 300 words in 5 minutes?

Back

If Julie types 300 words in 5 minutes, she can type 3600 words in an hour (300 words ÷ 5 minutes = 60 words per minute; 60 words/minute × 60 minutes = 3600 words).

Tags

CCSS.6.RP.A.3B

Front

What is the formula to find the price per item?

Back

The formula to find the price per item is: Total Price ÷ Number of Items.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If you spend $60 on 4 pounds of apples, what is the unit price per pound?

Back

The unit price per pound is $60 ÷ 4 pounds = $15 per pound.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you convert a rate given in minutes to an hourly rate?

Back

To convert a rate from minutes to an hourly rate, multiply the rate by the number of minutes in an hour (60 minutes). For example, if you can type 300 words in 5 minutes, you multiply by 12 (60 ÷ 5) to find the hourly rate.

Tags

CCSS.6.RP.A.3B

Front

What is the unit rate if a family buys 6 tickets for $240?

Back

The unit rate is $240 ÷ 6 tickets = $40 per ticket.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you find the total distance traveled if you know the speed and time?

Back

To find the total distance traveled, multiply the speed by the time: Distance = Speed × Time.

Tags

CCSS.6.RP.A.3B

Front

If a car travels at a speed of 55 miles per hour, how far will it travel in 2.5 hours?

Back

The distance traveled is 55 miles/hour × 2.5 hours = 137.5 miles.

Tags

CCSS.7.EE.B.3