Algebra Chapter 11 Test Answers

1. x = 3, y = 6

2. x = 5, y = 8

3. x = 4, y = 10

4. n = ½ y = -1

5. n = 1, b = 1

6. n = 2, y = 7

7. x = -3, y = 6

8. k = -4, n = 8

9. Each night costs $120

Each meal costs $15.50

10. Hats sold = 28 Shirts sold = 12

11. The two equations have the same slope; thus, they are either

the same line or the two are parallel and never intersect.

Since they have different y intercepts, they can’t be the same

line; hence, they are parallel and could not have any points in

common. That means they have no solutions.

12. Jim = 36 Marty = 12

13 – 15. Come by and see me for solutions.

16. Sold to girls = 42

Sold to boys = 58

17. Joe’s age = 14

Tom’s age = 8

18. Yes. When you plug x = 2 and y = 3 into the two inequalities, both are true.

19. True for all real numbers

20. Never true. No solutions exist.

21. Hotdog = $3

Order of fries = $2

Coke = $1