Rates & Unit Rates

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What is a unit rate?

Back

A unit rate is a comparison of two different quantities where one of the quantities is expressed as a quantity of one. It is often used to determine the cost per item or the rate of something per unit of measure.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

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How do you calculate the unit price of an item?

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To calculate the unit price, divide the total price by the number of units. For example, if a product costs $20 for 10 slices, the unit price is $20 ÷ 10 = $2 per slice.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

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What is the unit rate of customers per hour if a store has 120 customers in 6 hours?

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The unit rate is calculated by dividing the total number of customers by the total hours. Therefore, 120 customers ÷ 6 hours = 20 customers per hour.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

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If Lynnette can wash 95 cars in 5 days, how do you find the number of cars she washes each day?

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To find the number of cars washed each day, divide the total number of cars by the number of days. So, 95 cars ÷ 5 days = 19 cars per day.

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CCSS.3.OA.A.3

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What is the formula to find the unit rate?

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The formula to find the unit rate is: Unit Rate = Total Quantity ÷ Total Units.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

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How do you compare two unit prices to determine the better deal?

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To compare two unit prices, calculate the unit price for each item and then compare the values. The item with the lower unit price is the better deal.

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CCSS.6.RP.A.3B

Front

What is the unit rate of portraits painted per week if Luke can paint 91 portraits in 7 weeks?

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To find the unit rate, divide the total number of portraits by the number of weeks: 91 portraits ÷ 7 weeks = 13 portraits per week.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

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Why is it important to understand unit rates in real-life situations?

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Understanding unit rates helps consumers make informed decisions about purchases, compare prices, and evaluate the efficiency of services.

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CCSS.6.RP.A.3B

Front

What is the significance of finding the missing numerator in a rate problem?

Back

Finding the missing numerator is crucial for solving rate problems as it allows you to establish a complete ratio or rate, which is necessary for further calculations.

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How can you express a rate as a fraction?

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A rate can be expressed as a fraction by placing the quantity of one item in the numerator and the quantity of the other item in the denominator, such as cars per day or dollars per item.