8th Math Ch. 3 Review Y3

3-1 & 3-2 Solving Two-Step & Multi-Step Equations

100

2x+5=21

x = 8

200

8=a/3+6

a = 6

300

10x-76 = 754

x = 83

400

7-(5t-13)=-25

t = 9

500

-15b+21+5b=-19

b = 4

3-1 & 3-2 Solving Two-Step & Multi-Step Equations

100

10z-46=4

z = 5

200

4/3x-7=53

x = 45

300

Solve each equation.

3w+2-w=(-4)

w = (-3)

400

Solve each equation.

0.36p + 0.26 =3.86

p = 10

500

Solve each equation.

(3y)/4 - y/2 = 5

y = 20

3-3 Equations with Variables on Both Sides

100

5x-2=3x+4

x = 3

200

5m-13=3m+23

m=18

300

15+6x=45+8x

x = -15

400

4(x+3)=7(x-4)

x = 10

500

5-2(3-x)=4x+10

x=-11/2

3-4 Proportions

100

Solve the proportion.

5/t = 25/100

t = 20

200

Solve the proportion.

3/4 = c/20

c = 15

300

Solve the proportion.

w/6 = 6/15

w = 2.4

400

Solve the proportion.

x/8 = (x-5)/6

x = 20

500

Solve the proportion.

(d-2)/(d+9) = 3/14

d = 5

3-9 Pythagorean Theorem

100

What is the Pythagorean theorem?

a^2 + b^2 = c^2

200

Find the length of the hypotenuse with the given leg lengths. 

a = 3, b = 4, c = ??

a = 3, b = 4, c = 5

300

Determine whether the given lengths can be sides  of a right triangle.

a = 5, b = 12, c = 13

Yes

400

Find the length of the hypotenuse with the given leg lengths. 

a = 6, b = 8, c = ??

a = 6, b = 8, c = 10

500

Find the length of the hypotenuse with the given leg lengths. 

a = 10, b = 24, c = ??

Find the length of the hypotenuse with the given leg lengths. 

a = 10, b = 24, c = 26