Five-Minute Check (over Chapter 6)

Main Idea and Vocabulary

Key Concept: Percent

Example 1:Write a Percent as a Fraction

Example 2:Write a Percent as a Fraction

Example 3:Write a Percent as a Fraction

Example 4:Write a Fraction as a Percent

Example 5:Write a Fraction as a Percent

• percent

• Express percents as fractions and fractions as percents.

Write a Percent as a Fraction

Write 60% as a fraction in simplest form.

60% means 60 out of 100.

Definition of percent

Simplify. Divide the numerator and the denominator by the GCF, 20.

Answer:

1. A

2. B

3. C

4. D0% 0%0%0%

Write 30% as a fraction in simplest form.

A.

B.

C.

D.

Write a Percent as a Fraction

Write 140% as a mixed number in simplest form.

140% means 140 for every 100.

Write a Percent as a Fraction

Definition of percent

Divide the numerator and denominator by the GCF, 20.

Write as a mixed number.

Answer:

1. A

2. B

3. C

4. D0% 0%0%0%

Write 180% as a mixed number in simplest form.

A.

B.

C.

D.

LUNCH Use the table below. What fraction of the class members preferred spaghetti for the school lunch?

Write a Percent as a Fraction

The table shows that 25% of the class members preferred spaghetti.

Write a Percent as a Fraction

Definition of percent

Simplify.

Answer:

1. A

2. B

3. C

4. D

0% 0%0%0%

ICE CREAM Use the table to the right. What fraction of the students chose chocolate as their favorite flavor?

A. B.

C. D.

Write a Fraction as a Percent

Write a proportion.

Since 10 × 10 = 100, multiply 7 by 10 to find n.

Answer: .

n

×10

×10

70

1. A

2. B

3. C

4. D0% 0%0%0%

A. 0.4%

B. 4%

C. 40%

D. 400%

Write a percent to represent the shaded portion of the model.

Write a Fraction as a Percent

Write a proportion.n

Write a Fraction as a Percent

Since 4 × 25 = 100, multiply 7 by 25 to find n.

Answer:

×25

×25

175

1. A

2. B

3. C

4. D

0% 0%0%0%

A. 120%

B. 125%

C. 140%

D. 150%

Which percent represents the shaded portion of the model?

End of the Lesson

Five-Minute Check (over Chapter 6)

Image Bank

Math Tools

Animation Menu

Probability and Area

7-2 Circle Graphs

7-8 Estimating With Percents

1. A

2. B

3. C

4. D0% 0%0%0%

Write the rate 270 Calories in 3 servings as a unit rate.

(over Chapter 6)

A.

B.

C.

D.

1. A

2. B

3. C

4. D0% 0%0%0%

Write the rate $16 earned in 4 hours as a unit rate.

(over Chapter 6)

A.

B.

C.

D.

1. A

2. B

3. C

4. D0% 0%0%0%

A. 10

B. 12

C. 15

D. 20

(over Chapter 6)

Solve the proportion .

1. A

2. B

3. C

4. D0% 0%0%0%

A. 6

B. 9

C. 14

D. 18

(over Chapter 6)

Solve the proportion .

1. A

2. B

3. C

4. D0% 0%0%0%

A. 154

B. 160

C. 172

D. 192

ACTIVITIES If 16 out of 25 students participate in an after school activity, predict how many of the 300 students in the school participate in an after school activity.

(over Chapter 6)

1. A

2. B

3. C

4. D

0% 0%0%0%

A. 3x – 2

B. 2x – 3

C. x + 3

D. x + 4

What is the rule to find the value of the missing term in the sequence at the right?

(over Chapter 6)