# Lesson 4 Practice Questions

1. Types Of Equation 1. a) Conditional Equation b) Not an Equation c) Conditional Equation
2. Types Of Equation 2. d) Conditional Equation e) Not an Equation f) Identity
3. Correct Work. x+\frac{3}{4}+\frac{1}{3}=x+\frac{9}{12}+\frac{4}{12}=x+\frac{13}{12}
4. Case Matters. a) \pi R^2 b) \pi r^2 c) \pi R^2-\pi r^2

a) LHS = 5x - 3 = 5(1 ) - 3 = 5 -3 = 2

RHS = 2

yes, yes

b) LHS = 36

RHS = 34

no, no

c) LHS = -65

RHS = -65

yes, yes

6. Triangles. a) 8x+20 b) 180=8x+20 c) x=20

d) 3x+20__80

2x__ 40

3x__60

7. Rectangles And Squares. a) 14x+2 b) 12x^2+5x-2 c) 4x d) x^2
8. Circumference. a) 20 b) 2r\pi c) 20=2r\pi d) r=\frac{10}{\pi } e) 3.183
9. Equal Perimeters. a) 4x+8 b) 6x c) 6x = 4x+8 d) 4

e) x __ 4

2x __ 8

x+2 __ 6

10. What's The Step? a) -3 b) /4 c) *4 d) +5

e)

+2

/5

f)

-5

*3

11. Spotting Errors. d)
12. Solving Equations. a) 6 b) 5 c) 7 d) 16
13. Solving Equations 2. e) 5 f) 0.2 g) -5 h) -5 i) 5 j) 80 k) 0.8
14. Solving Equations 3. a) 5 b) 5 c) 6 d) -10 e) -5 f) 5
15. Solving Equations 4. a) -2 b) -5 c) 2 d) 3/8 e) -3 f) 27/2
16. Solving Equations 5. a) 1 b) -20 c) 6 d) 6/4 e) 5