Equations/Inequalities

Writing Equations

100

Write the equations. The sum of x and 3 times 5 is 15

5(x+3)=15

200

If a shirt cost $15.99 each and a pair of boots cost $30. Write the equations for how many shirts s, you can buy if you have $150 fi you buy the boots as well.

15.99s+30=150

300

On a boat trip, a family drives 250 miles the first day and 325 miles per day each remaining day.  How many days, d, will they travel to reach a distance of 3500 miles?

Write the equations AND solve the equation

250 + 325d=3500

d=10

400

Brian needs $150 for the baseball game.  He already has $25 and she can earn the rest by working 10 hours at the job.  If h represents hourly earnings, select ALL the answers that apply.

A. 25=150-h

B) 150-25=10h

C) 150=10h+25

D) 150=25+10h

E) 150+25=10h

B C D

2-step inequalities

100

1/4x+3 3/4 <10 2/5

x < 26 3/5

200

1/2x - 3 1/4 <= -2 3/4

Select ALL the answers

A -3

B -2

C -1

D 0

D) 1

A B C

300

-x-3.4 > 6.6

x<-9.8

400

-3x +1.25< 10.25.

Solve AND Graph

x > -3

Solve Combine Like-terms

100

2x-3x=10

x=-10

200

1/2x +1/4x=12

x=16

300

0.25x-3/4x -10=12

x=-44

Variables on Both Sides

100

3x-4=2x+5

x=9

200

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

x=-9

300

1/4x+8=1/2(4x-12)

x=8

400

-2.5x-10.5=x+7.

x=-5

How many Solutions?

100

-1/2(10x-4)=-5x-2

No Solutions

200

-1/2(10x-2)=-5x+1

Infinite

300

-1/2(10x-4)=5x-1

One solution

400

1/2x+5=1/4(2x-20)

No solution