Benchmark 2 Review

Solving Equations

100

3=2n-3n

-3

200

-1-4n-1=18

-5

300

2-7(2n-5)=-6n+5

4

400

-2b-3(4b-5)=-3(7+4b)

18

500

z=mx+yx, solve for x

x=-z/-m-y

Proportions/Percents

100

-3/a=10/7

-2.1

200

Find the percent change from 40 to 9

77.5% decrease

300

(n+8)/3=(n-1)/12

-11

400

Find the percent change from 41 to 95

131.7% increase

500

368 is 93% of what?

395.7

Absolute Value

100

|2x+2|=6

x=2,-4

200

|5-7x|=23

x=-18/7,4

300

|8n-3|=3

n=3/4,0

400

|-1+4x|/10=3

x=31/4,-29/4

500

|-6+9r|+5=80

r=9,-23/3

Inequalities

100

Solve and graph 6b-5-b>10

b>3

200

Solve and graph 20+6b<-2(-6b-7)

b>1

300

34-7x>=-3(2+5x)

x>=-5

400

Solve and graph 10(m+9)>3(-8-3m)

m>-6

500

Solve and graph 7(9-9n)+7(9n+6)<11n+4n

n>7

Compound Inequalities

100

Solve and graph 13-8m<16-5m and 7+11m<=6m+17

-1<m<=2

200

|v+6|<4

-10<v<-2

300

Solve and graph |x+2|>6

x>4 or x<-8

400

Solve and graph 2a-2<11a-2 or -18a-18>=2a+2

a>0 or a<=-1

500

Solve and graph |-10-10n|<50

-6<n<4