Solving for the Unit Rate

Solving for the Unit Rate

Using rates to find the unit rate in word problems.

Multiple Choice

What is a comparison between two different quantities?

• Ratio

• rational

• Algebra

• Percent

Ratio

• A comparison between two different quantities.

• 6 apples to 7 oranges

• 5 boys:6 girls

• 5 cars/2 buses

Multiple Choice

A ratio that compares two quantities with two different units is called what ?

• Proportion

• Percent

• Unit of measures

• Rate

Rate

• Is a ratio that compares two quantities with two different units.

• 130 miles in 3 hours

• 46 students in 5 buses

• $250 for 10 hours

Multiple Choice

The rate for one unit of a given quantity is called what?

• ratio

• Proportion

• Unit Rate

• Fraction

Unit Rate

• Is the rate for one unit of a given quantity.

• $16 for each hour

• 55 miles per hour

• 6 pounds for every box

Multiple Select

Select all of the following that represents unit rates.

• 60 miles per hour

• 120 cookies for 10 cups of sugar.

• 12 cupcakes for each stick of butter.

• $5 for 3 bags of chips.

• $15 every hour

Solving for the unit rate

• First, identify the rate in the problem.

• Next, write your rate as a fraction.

• Finally, simplify the fraction (divide)

• $3.50 for 35 minutes = 3.50/35 = 0.1/1 = $0.10 per minute

Multiple Choice

Jason scored 108 points in six games. How much does he score per game?

• 648 points

• 16 points

• 114 points

• 18 points

Multiple Choice

A rain forest can receive 90 cm of rain in 30 days. What is the unit rate?

• 30 cm

• 3 cm

• 15 cm

• 3 days

Multiple Choice

An airplane ascends to an altitude of 1000 feet in 10 minutes. How many feet did the airplane ascend per minute?

• 100 feet

• 10 feet

• 1 minute

• 100 minutes

Example 1

Compare a Cool Mint value pack of 40 pieces of gum that costs $2.80 and a trident pack of 12 pieces of gum that costs $0.72. Which is the better buy?

Open Ended

Victor buys four chairs to place around his dining room table. He pays a total of $88. What is the unit

price?

Look at the student’s work. Identify the error and what the correct answer is.

Poll

How do you feel about finding the Unit Rate?

• Great

• Good

• Okay

• Not so good

• Do not understand

Open Ended

For the next lesson, what do you think equivalent ratio means. Use your own words.