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 a car travels 300 miles in 5 hours, the unit rate is 60 miles per hour.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you calculate a unit rate from a total?

Back

To calculate a unit rate, divide the total quantity by the number of units. For example, if there are 125 students in 5 buses, the unit rate is 125 ÷ 5 = 25 students per bus.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the formula to find the percentage of a number?

Back

To find the percentage of a number, multiply the number by the percentage (as a decimal). For example, to find 35% of 60, calculate 60 × 0.35 = 21.

Tags

CCSS.6.RP.A.3C

Front

How do you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide the percentage by 100. For example, 35% as a decimal is 35 ÷ 100 = 0.35.

Front

What is the relationship between percentages and fractions?

Back

Percentages can be expressed as fractions by placing the percentage over 100. For example, 25% can be written as 25/100, which simplifies to 1/4.

Front

How do you calculate the total number from a percentage?

Back

To calculate the total number from a percentage, divide the known quantity by the percentage (as a decimal). For example, if 21 is 35% of the total, the total is 21 ÷ 0.35 = 60.

Tags

CCSS.6.RP.A.3C

Front

What is the cost of buying multiple pounds of an item at a unit price?

Back

To find the total cost, multiply the unit price by the number of pounds. For example, if apples cost $1.50 per pound, then 9.5 pounds cost 1.50 × 9.5 = $14.25.

Tags

CCSS.6.RP.A.3B

Front

What does it mean to find half of a number?

Back

Finding half of a number means dividing the number by 2. For example, half of 10 is 10 ÷ 2 = 5.

Tags

CCSS.1.G.A.3

Front

How do you find the rate of an activity per unit of time?

Back

To find the rate of an activity per unit of time, divide the total number of activities by the total time taken. For example, if Sarah kicks 48 soccer balls in 6 minutes, the rate is 48 ÷ 6 = 8 soccer balls per minute.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the significance of understanding unit rates in real-life applications?

Back

Understanding unit rates helps in making comparisons and informed decisions in real-life situations, such as calculating costs, speeds, and efficiencies.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2