Chapter 9 Review Daniels

Equivalent Expressions

100

expand the following expression using the distributive property and combining like terms

2(4n + 8) + 4

8n+20

200

Prove the expressions are/aren't equivalent

3(3x-4)

9x - 4

not equivalent

300

Simplify the expression by combining like terms

9 - x + 18 + 6x

7x + 27

400

Simplify the expression

-2(2x - 6)

-4x + 12

500

Simplify the expression

-2.5(4x + 5) +2x

-8x - 12.5

Evaluating Expressions

100

Evaluate the following expression when n = 3

4n + 6 

18

200

Evaluate the following expression when x = 2

2x + 6 + 3x

16

300

Evaluate the following expression when x = 9

3(3x - 4) - 2

67

400

Evaluate the following expression when x = -5

x + 8 + 2x - 2

-9

500

Evaluate the following expression when x = 4

2x² - 4x + 5

21

Unit rates

100

If a car travels 65 miles per hour for 5 hours, how far does the car go?

325 miles

200

I bought 3 pounds of ground beef for $6.90. How much does one pound of ground beef cost?

$2.30

300

It snowed 1.5 inches per hour in Canada. If it snowed a total of 19.5 inches that day, how many hours did it snow?

13

400

I spent $3.75 on Celsius per day for the month of May. How much money did I spend during that month? (31 days in May)

$116.25

500

I spent $8.37 on a pack of beef jerky. If there were 9 pieces of beef jerky, how much did each piece cost?

$0.93

Inequalities

100

Graph the following inequality

x > -1

see board

200

Graph the following inequality

x < 10

see answer

300

Find a solution to the following inequality

5x > 25

x > 5

400

Find a solution to the following inequality

4x + 7 < 23

x < 4

500

Graph the following inequality

3x + 4 > 13

x > 3 

See graph

Random Math

100

 3³

27

200

Which is larger 2⁴ or 4²

They are equivalent

300

Simplify the following equation

3(12 - 2²) - 5(2)

14

400

What do we use to define the distance negative numbers are from zero?

absolute value

500

Find the value of the following expression

l-3.8l + 5(2) -2²

9.8