Chapter 4 Review

Review & Refresh

100

Which is greater?

|-2.5| or 3/2

|-2.5|

200

Factor the expression using the coefficient:

12x - 18

12(x - 1.5)

300

Simplify the following expression:

(7x - 6) - (x + 15)

6x - 21

400

Write the decimal -0.125 as a fraction in simplest form.

-1/8

500

Find the area of a triangle with a base of 16 and a height of 3.

A = 24

One-Step

100

x + 14 = -24

x = -38

200

12x = 108

x = 9

300

x/20 = -2

x = -40

400

-2.36 + x = -10.6

x = -8.24

500

2/3 * x = 4/9

x = 2/3

Two-Step

100

2x + 7 = 3

x = -2

200

15 = -5x + 10

x = -1

300

3/5 * x - 1/3 = -10/3

x = -5

400

3x - 9x = 30

x = -5

500

-4.8x + 6.4 = -8.48

x = 3.1

Multi-Step

100

5x + 2x + 4 = 18

x = 2

200

-2 = -9n + 22 - n

n = 2.4

300

2/3 * x - 1/3 * x + 11 = 8

x = -9

400

21(2 - x) + 12x = 44

x = -2/9

500

-1/4(x + 2) + 5 = 6

x = -6

Word Problems

100

The quotient of 72 and a number is -9.

n = -8

200

Two less than three times a number is equal to 25.

n = 9

300

A cell phone company charges a monthly fee plus $0.25 for each text message you send. Th e monthly fee is $30.00. You owe $59.50. How many text messages did you send?

118 text messages

400

A grocer prepares free samples of a salad to give out during the day. By lunchtime, the grocer has given out 5 fewer than half the total number of samples. How many samples did the grocer prepare if she gives out 50 samples before lunch?

110 samples

500

On Saturday, you catch insects for your science class. Five of the insects escape. The remaining insects are divided into three groups to share in class. Each group has nine insects. How many insects did you catch on Saturday?

32 insects