Inequalities Practice

Easy 2-step inequalities

100

3x + 4 > 16

x > 4

200

18x + 3 < 111

x < 6

300

13 + 12x < 157

x< 12

400

25x + 66 > 99

x > 33/25

500

100x + 500 < 1000

x < 5

Do I have enough?

100

I want to get 5 candy bars, each for $4. I have $25. Do I have enough? 

Set up the inequality and say yes or no

4x < 25

x = 5 

yes

200

I want to get 14 pillows, each for $8. I have $200. Do I have enough? 

Set up the inequality and say yes or no

8x < 200

x = 14 

yes

300

I want to get 5 blankets for my bed, each for $17. I have to buy my sheets that are $30. I have $100. Do I have enough? 

Set up the inequality and say yes or no

17x + 30 < 100

x = 5

No

400

I want to get 125 pictures for my picture wall, each for $0.50. I have to buy the string for the wall for $18. I have $80. Do I have enough? 

Set up the inequality and say yes or no

0.5x + 18 < 80

x = 125

No

500

I want to get 23 watermelons, each for $6. I have to buy the plates too for $16. I have $155. Do I have enough for a pack of gum for $1? 

Set up the inequality and say yes or no

6x + 16 < 155

x = 23

154 < 155, $1 left over, so Yes!

Correct me

100

5x + 4 < 10

divided by 5 first

200

14 + 5x < 7

Flipped the sign when I shouldn't have

300

3x + 9 < 10 - x

subtracted x when you should have added

400

2x + 15 > 45 + 18x

didn't flip sign

500

(3/4)x + 75 < 50

flipped sign and didn't include negative