Solving Inequality Models

s + 9 ≥ -25

• s ≥ -18

• s ≥ -34

• s ≤ 18

• s ≥ 34

0 < x + 7 < 9

• -7

• -7

• -7>x and x>2

• -7>x or x>2

-5 < 5p + 10 < 25

• p = 3

• -3 < p < 3

• -5 < p < 3

• -3 < p < 25

There are no more than 18 students on the hall.

• s>18

• s<18

• s≤18

• s≥18

There are fewer than 150 children at the playground.

• c<150

• c>150

• c≤150

• c≥150

At least 25 cats are on my porch.

• c<25

• c>25

• c≤25

• c≥25

You take a trip to the bowling alley, where each game cost $2, plus you plan to spend $10 on food.  You can spend at most $25.  Which inequality models this scenario?

• 2x + 10 ≥ 25

• 2x + 10 > 20

• 2x + 10 ≤ 25

• 2x + 10 < 25

Write the word sentence as an inequality
6 times a number x is at most 47

• 6x > 47

• 6x ≥ 47

• 6x < 47

• 6x ≤ 47

Solve the inequality
2 ≥ y - 12

• y ≤ 14

• y > 14

• y < 10

• y ≤ 10

Write the word sentence as an inequality
a number b is at least -16

• b ≥ -16

• b ≤ -16

• b = -16

• b > -16