Ratios - DNL

Ratios - DNL

Key Point

A part to total ratio can be represented using a double number line.

Multiple Choice

There are 2 chocolate chip cookies for every 5 total cookies at the cafe. What percent of cookies are chocolate chip?

• 20%

• 25%

• 40%

• Impossible to Determine

Multiple Choice

There are 2 chocolate chip cookies for every 5 total cookies at the cafe. What percent of cookies are NOT chocolate chip?

• 40%

• 60%

• 65%

• Impossible to determine

Multiple Select

On last week's quiz, Andre got18 questions correct and 2 questions incorrect. Select the correct statements below.

• Andre got 16 questions correct

• The part to total ratio for questions correct to total is 16:18

• Andrew got a 10% on the quiz

• Andrew got a 90% on the quiz

Key point

Finding the percent of a number is the same as finding part of a number.

Multiple Choice

Rihanna has 40 total pieces of candy. 20% of them are red. How many red candies does she have?

• 100

• 8

• 5

• 2

Multiple Choice

Jerry's brother bought a computer for $800. He made equal payments of 25% of the total cost. How much was each payment?

• $25

• $32

• $200

• $400

Key point

We can use benchmark percents to find a percent of a number

Multiple Choice

What is 80% of 240?

• 24

• 30

• 192

• 300

Fill in the Blank

LaQuan had 350 pencils at the start of the year. He was generous and gave 60% of his pencils to other students by the end of the year. How many pencils did he give away by the end of the year?

Key Point

We can sue benchmark percents to find an unknown total

Multiple Choice

Brian's grandmother offered to give him a gift of 50% of the amount of money he saved in one year. His grandmother gave him $60. How much did he save?

• $30

• $60

• $120

• $180

Fill in the Blank

Jaden gave away 42 stickers to his friends, which was 60% of his personal collection. How many stickers die Jaden originally have?