Solving Inequalities

What inequality does the number line graph represent?

• x < -4
• x < 4

What inequality does the number line graph represent?

• x > 3
• x < -3

Edith must read for a minimum of 20 minutes every night.

• x > 20
• x < 20
• x ≥ 20
• x ≤ 20

There are no more than 18 students in the class.

• s>18

• s<18

• s≤18

• s≥18

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3(x - 3) ≤ 2(x + 2)

• x ≤ -5
• x ≥ 5
• x ≥ 13
• x ≤ 13

Solve:
7(x + 3) < 5x + 13

• x>-4
• x < 17
• x<-4
• x > -17

Emilia needs at least $240 to buy new headphones. She has already saved $30 and decides to earn the rest by washing cars. She charges $14 per car. Write and solve an inequality to determine the number of cars she needs to wash to reach her goal.

Solve the inequality/answer the question.

• x ≥ 15

• x ≤ 15

• x ≥ 17

• x ≤ 17

Dylan has a goal of donating at least $600 to charity this year. His mother and father each gave him $50 to help and he is selling ribbons for $10 each. What is the least number of ribbons Dylan must sell to reach his goal? Write and solve the inequality.

• 49

• 50

• 51

• 60