Unit 2- Systems of Equations 

Unit 2 Test Review Key

Lesson 3 Homework
1a. (4.5,7)
b,i, 8a+3c=2000
ii. a+c=300
iv. (220,80)
2a. (2,3)      b. (-3,-15)      c. (-3,0)
3a. (2,2)      b. No Solution      c. (5,0)
4a. x+y=8       8x+15y=85
b. 5 hrs. babysitting and 3 hrs. yardwork
5a. (4,-1)      b. (2,2)     c. No Solution
6b. (5,6)

Lesson 1 Homework
#1 a. -32  b. -35   c. 42   d. 36    e. 32
#2 c. 645  d. San Diego
#3 a. a=10   b. x=10   c. b=12    d. x=9
#5 a. (2,9)    b. (.5,8)   c. (5, -2)