Algebra 1 2-10 Guided Practice: Change Expressed as a Percent

by Matthew Richardson

| 12 Questions1

2

1

5

Solve It! Two stores advertised sales on their websites, as shown. Before the sale, each sweater cost $35. Which store offers the better deal?

The store with the ad on the right.

The store with the ad on the left.

2

10

Solve It! Explain how you know.

3

4

5

6

3

10

Take Note: Define percent change.

4

10

Take Note: Describe an example scenario that represents percent increase.

5

10

Take Note: Describe an example scenario that represents percent decrease.

6

10

Take Note: Describe the process of calculating percent change.

7

7

10

Problem 1 Got It?

A

B

C

D

8

10

Problem 2 Got It? In one year, the toll for passenger cars to use a tunnel rose from $3 to $3.50. What is the percent increase?

about 14%

about 17%

about 54%

about 46%

9

9

10

Problem 3 Got It?

A

B

C

D

10

10

10

Problem 4 Got It?

A

B

C

D

11

11

10

A

B

C

D

12

12

10

Take Note: Summarize the mathematical content of this lesson. What topics, ideas, and vocabulary were introduced?

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