Group 1 period 4

Linear Equation

100

Solve by adding 

C - 22 = 54

C - 22 = 54

C - 22 + 22 = 54 + 22

C = 76

200

Fifteen times a number subtracted from 80 is 25

equation is 

80 - 15n = 25

300

Solve each equation

11x - 4 = 29

11x - 4 + 4 = 29 + 4

11x = 33

11x/ 11 = 33/11

X = 3

400

Solve 

2 + 5k = 3k - 6

2+ 5k = 3k - 6

-3k = - 3k  

--------------------

2 + 2k = -6

   -2    = -2

--------------------

2k/2=2     -8/-8=2                K=-4

500

solve

(m+6) - 14

m=4

(m+6) - 14 = (4 + 6) - 14

= (10) - 14

= 10 - 14

= -4

Inequalities

100

solve x-9<-4

x<5

200

-14h<56

[h]h>-4

300

-6y-13>29

y<-7

400

-3w+4>-8  and  2w-11>-19

w<4    w>-4

500

Solve for y 2x-y>3

y<2x - 3

Exponential Equations

100

simplify

(3p³/7)²

9p⁶/49

200

f(x)=e-x+2

y=e-x+2

x=2

300

2^x=32

x=5

400

y=a(1+r)^t

y-=100(1+0.025

y=100(1.025)^t

500

A fully inflated child's raft for a pool is losing 6.69% of its air everyday. The raft originally contained 4,500 cubic inches of air.

y=a(1-r)^t

=4,500(1-0.066)^t

=4,500 (0.934)^t