Test Review 2 2 More than half of

Test Review 2

2. More than half of the students are excited about the project. In fact 11/12 of the are excited. If 10 students are not excited about the project, how many students are excited?

Answer: 110 Students

4. Use elimination to solve 3 x + y = 9 2 x – 3 y = -15

Answer: (12/11, 63/11)

7. Graph a) y = -2

Answer: Horizontal Line on -2

1. The formula requires 20 liters of alcohol to make 120 liters of the solution. How many liters of alcohol are needed to make 1560 liters of the solution?

Answer: 260 Liters

6. Find m

Answer: √ 119

5. Add

Answer: 3 a – 3 a c – 2 c 3 3 2 2 2 3 a c 3

7. Graph b) y = -3 x

Answer: y-int = 0 slope = -3/1

3. Only 20 percent of the spectators left the contest discontented. If 6000 spectators left the contest contented, how many left discontented?

Answer: 1500 Spectators

10. Find the area of the sector shown. Dimensions are in inches.

Answer: 2 80. 38 inches

8. Find the equation of the line that has a slope of -3/5 and passes through (-2, 4).

Answer: y = -3/5 x + 14/5

9. Solve for a, x, and y.

Answer: a = 25 x=4 y = -7

11. Expand

Answer: 2 -m + 2 m 3 n n 3

12. Solve for the unknown variables

Answer: TM = 11/3 TB = 20/3

16. Solve 2 ½ x – 2/5 = -1/10

Answer: 3/25

18. Simplify by adding like terms

Answer: 3 - a + 5 a 3 p 2

13. Multiply

Answer: 3 2 12 x – 29 x – x + 10

20. Simplify

Answer: -9

14. Divide and check

Answer: 2 x + 6 x + 24 + 97/x – 4

15. Solve -2[(-3)(-2 – x) + 2(x – 3)] = -2 x

Answer: 0

17. Simplify

Answer: 4 -243 ac

19. Evaluate

Answer: -67/216