Finding 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 (e.g., miles per hour, dollars per item).

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you calculate the unit price of an item?

Back

To calculate the unit price, divide the total cost of the item by the total number of units (e.g., cost per pound, cost per ounce).

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If a 5-pound bag of cat food costs $11, what is the unit price per pound?

Back

$2.20 per pound.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the formula to find the unit rate of earnings per hour?

Back

Unit rate = Total earnings / Total hours worked.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If Elijah earns $200 for 8 hours of work, what is his unit rate in dollars per hour?

Back

$25 per hour.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you determine the unit rate of spending per hour during an activity?

Back

Unit rate = Total money spent / Total hours spent on the activity.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If John spends $9 on water, $5 on protein bars, and $3 on peanuts for a hike lasting 4 hours, what is the unit rate of money spent per hour?

Back

$4.25 per hour of hiking.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the process to compare unit prices of different sizes of the same product?

Back

Calculate the unit price for each size by dividing the total price by the total weight or volume, then compare the results.

Tags

CCSS.6.RP.A.3B

Front

If a 10-ounce bag of jellybeans costs $1.99 and an 18-ounce bag costs $2.99, how do you find which is the better buy?

Back

Calculate the unit price for each: 10-ounce bag = $0.199 per ounce; 18-ounce bag = $0.166 per ounce. The 18-ounce bag is the better buy.

Tags

CCSS.6.RP.A.3B

Front

What is the unit price of an item that costs $40 for 5 pounds?

Back

$8 per pound.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2