Percent of a Number with Diagram

Part-to-whole ratio where 100 is the whole

• percent

• ratio

• fraction

• unit rate

Which way do you prefer solving for percents of numbers?

• Using a diagram

• Using an expression

• Using cross products

• Using place value knowledge (10% of 60 is 6)

In a school of 200 students. 30% of the students participated in the singing competition. How many students participated in the competition?

• 200

• 60

• 30

• 100

Which of the part:whole equivalent ratios could be used to find the total number of 8th graders?

The graph shows the number of baseball cards Jimmy had in his collection on May 1 and on June 1. What was the percent increase in the number of cards from May 1 to June 1?

• 25%

• 20%

• 21%

• 30%

A restaurant has a sign by the door that says "Maximum occupancy: 75 people." What percent of its capacity is 9 people?

• 9%

• 75%

• 12%

• 21%

Pacino worked 8 hours out of the day.

Which proportion could you use to find the percent of the day he was working?

(Hint: There are 24 hours in a day.)

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The graph shows the number of baseball cards Jimmy had in his collection on May 1 and on June 1. What was the percent increase in the number of cards from May 1 to June 1?

• 25%

• 20%

• 21%

• 30%

• A
• B
• C
• D

A fish tank that holds 80 gallons of water is 55%

full. How many gallons are in the tank now and how many more gallons will be required to fill the tank?

• 55 gallons are in the tank now and 45 gallons are still required.

• 36 gallons are in the tank now and 44 gallons are still required.

• 55 gallons are in the tank now and 80 gallons are still required.

• 44 gallons are in the tank now and 36 gallons are still required.

• 50 gallons are in the tank now and 30 gallons are still required.