Unit 4 Topics jeoprody

Percent Equation

100

What percent is 5 divided by 10

50%

200

What percent is 5 divided by 50

10%

300

what is 9 divided 45

20%

400

what is 34 divided 474

0.0007173%

500

what is 343 divided 5854

0.00058592%

Solving Equations with Variables on Both Sides

100

5x-2=3x+4

x=3

200

9n-6=5n+19

n=6

300

-4y-3=6

-2.25

400

-5y+7=3

y=-8

500

6y+4 -3y=-5+y+17

y=4

Solving Inequalities with Variables on Both Sides

100

-10 is less than or equal to -2x+20

15 is less then or equal to x

200

2/3x-4 is less than or equal to 6

15 is less than or equal to x

300

-2x+3 is less than or equal to 12

x is less than or equal to -3

400

16 is less than or equal to -14+3/4x

x is greater or equal to 40

500

4/5x+25.8 is greater than or equal to 16.2.

-12.25 is less than or equal to x

Solutions / Infinite Solutions

100

4(2x-8)=8(x-4)

-32=-32 true

inf.

200

-3(x+12)=-3(-x+12)

-12=-12

300

2x + 3 = x + x + 3

x=7

400

2x + 3 = 7

x=2

500

12 + 2x – 8 = 7x + 5 – 5x

inf.

Properties of Exponents

100

2⁴ times 2³=    

2⁷

200

2³ times 2³=2³⁺³

2⁶

300

2⁵

       ^_         =2^5-3

2³

2²

400

3¹

-        =3_1-5  =3  ⁴ 

3⁵ 

3⁴

500

   4

5^{2   =} x^{2 times 4} x=

x=8