Unit 3 Unit Rates and Percentages Review

Front

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. For example, if 5 pounds of apples cost $10, the unit rate is $2 per pound.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you calculate the cost of multiple items given a unit price?

Back

To calculate the cost of multiple items, multiply the unit price by the number of items. For example, if apples cost $1.50 per pound and you buy 9.5 pounds, the cost is $1.50 x 9.5 = $14.25.

Tags

CCSS.6.NS.B.3

Front

What is the formula to find the unit rate?

Back

The formula to find the unit rate is: Unit Rate = Total Cost / Number of Units. For example, if you spend $40 on 5 pounds of concrete, the unit rate is $40 / 5 = $8 per pound.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you find the number of items per group?

Back

To find the number of items per group, divide the total number of items by the number of groups. For example, if there are 125 students and 5 buses, the number of students per bus is 125 / 5 = 25.

Tags

CCSS.3.OA.A.2

Front

What is a better buy when comparing two different pack sizes?

Back

To determine the better buy, calculate the cost per item for each pack size. The pack with the lower cost per item is the better buy. For example, if an 8 pack costs $4.79, the cost per juice box is $4.79 / 8 = $0.59875, and for a 12 pack costing $6.59, it's $6.59 / 12 = $0.54917.

Tags

CCSS.6.RP.A.3B

Front

How do you calculate the price of one item from a bulk purchase?

Back

To calculate the price of one item from a bulk purchase, divide the total cost by the number of items. For example, if you buy 20 apples for $10.00, the price of one apple is $10.00 / 20 = $0.50.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the relationship between percentages and unit rates?

Back

Percentages can be converted to unit rates by expressing the percentage as a fraction of 100. For example, 25% can be expressed as 25/100 or 0.25.

Front

How do you convert a fraction to a percentage?

Back

To convert a fraction to a percentage, divide the numerator by the denominator and then multiply by 100. For example, 1/4 = 0.25 x 100 = 25%.

Front

What is the importance of understanding unit rates in real life?

Back

Understanding unit rates helps consumers make informed decisions about purchases, compare prices, and evaluate the best value for money.

Tags

CCSS.6.RP.A.3B

Front

How can you use unit rates to compare different products?

Back

You can use unit rates to compare different products by calculating the cost per unit for each product and choosing the one with the lower cost per unit.

Tags

CCSS.6.RP.A.3B