Test 4

Algebraic Equations

100

x + 25 = 34

x = 9

200

100/x = 10

x = 10

300

x/4 + 5 = 8

x = 12

400

2x + 10 - x = x + 2

x = -4

500

(x + 5) / 6 = 4

x = 19

Multiplying Decimals

100

.52 * .98

.5096

200

4.05 * .3

1.215

300

.625 * .25

.15625

400

.597 * .95

.56715

500

.700 * .002

.0014

Dividing Decimals

100

36 divided by .006

600

200

500 divided by .05

10000

300

250 divided by .2

1250

400

450 divided by .04

11250

500

49 divided by .007

7000

Adding and Subtracting Decimals

100

5.635 + .397

6.032

200

82 - .482

81.518

300

68 + 5.695

73.695

400

110 - 50.525

59.475

500

42 - 5.321 + 3.647

40.326

Percentages and Degrees

100

5/8 = y/360

y = 225 degrees

200

2/10 = x/100

x = 20%

300

4/40 = x/100

x = 10%

400

Mr. Dillon's 1st Block class took a survey about favorite artist. 8 out of 20 students voted for Lil Wayne. If I made a circle graph, what would my degrees be to form Lil Wayne's part of the circle?

144 degrees

500

Mr. Winger's second period class took a survey which asked the class what their favorite college football team was. 10 out of 20 students answered Ohio State. If I was to create a circle graph, what would my percentage and degree be?

Percentage: 50% Degree: 180 degrees