Lesson 15: Finding This Percent of That | Unit 3: Unit Rates and Percentages

Open Ended

To find 40% of 75, Priya calculates $$\frac{2}{5}\cdot75$$ . Does her calculation give the correct value for 40% of 75? Explain or show how you know.

Open Ended

If $$x$$ represents a number, does $$\frac{2}{5}\cdot x$$ always represent 40% of that number? Explain your reasoning.

Open Ended

Han spent 75 minutes practicing the piano over the weekend. Priya practiced the violin for 152% as much time as Han practiced the piano. How long did she practice? Explain your reasoning.

Open Ended

Han spent 75 minutes practicing the piano over the weekend. Tyler practiced the clarinet for 64% as much time as Han practiced the piano. How long did he practice? Explain your reasoning.

Multiple Choice

Last Sunday 1,575 people visited the amusement park. 56% of the visitors were adults, 16% were teenagers, and 28% were children ages 12 and under. How many adults visited the park?

• 1,200
• 750
• 882
• 1,000

Multiple Choice

Order from greatest to least: 55% of 180, 300% of 26, 12% of 700.

• 300% of 26, 55% of 180, 12% of 700

• 55% of 180, 12% of 700, 300% of 26

• 12% of 700, 55% of 180, 300% of 26

• 300% of 26, 12% of 700, 55% of 180

Multiple Choice

The sale price of every item in a store is 85% of its usual price. What is the sale price of a backpack with a usual price of $30?

• $25.50
• $22.50
• $27.00
• $20.00

Multiple Choice

The sale price of every item in a store is 85% of its usual price. Calculate the sale price of a sweatshirt with a usual price of $18.

• $15.30
• $17.00
• $16.20
• $14.50

Multiple Choice

The sale price of every item in a store is 85% of its usual price. What is the sale price of a soccer ball with a usual price of $26?

• $20.00
• $23.40
• $22.10
• $25.00

Multiple Choice

A family has a monthly budget of $2,400. How much money is spent on housing if 44% is spent on it?

• $1,200
• $960
• $1,440
• $1,056