Solving Real-Life Linear Inequalities: Grade 8 Challenge

A school is planning a field trip and needs at least 30 students to sign up. If 12 students have already signed up, how many more students need to sign up? Write an inequality to represent this situation.

• 25

• 18

• 15

• 20

Maria has $50 to spend on supplies for a project. If each supply costs $5, how many supplies can she buy? Write an inequality to express this.

• x <= 10

• x = 5

• x >= 10

• x < 10

A concert hall can hold a maximum of 500 people. If 350 tickets have already been sold, how many more tickets can be sold? Write an inequality to represent this scenario.

• 150

• 100

• 200

• 400

Tom is saving money to buy a new bike that costs $200. If he currently has $75, how much more does he need to save? Write an inequality to show how much more he needs to save.

• x > 200

• x <= 125

• x >= 125

• x = 150

A bakery can produce a maximum of 200 loaves of bread in a day. If they have already baked 120 loaves, how many more can they bake? Write an inequality to represent this situation.

• 90

• 80

• 100

• 60

A gym has a maximum capacity of 150 members. If there are currently 90 members, how many more can join? Write an inequality to express this situation.

• 75

• 60

• 45

• 30

Lisa wants to buy a new phone that costs $600. She has saved $250 so far. How much more does she need to save? Write an inequality to represent this situation.

• x <= 250

• x > 600

• x >= 350

• x = 350

A farmer has 100 acres of land and wants to plant corn. If he has already planted corn on 45 acres, how many more acres can he plant? Write an inequality to express this.

• 45

• 100

• 55

• 60

A library has a limit of 300 books that can be checked out at one time. If 180 books are currently checked out, how many more can be checked out? Write an inequality to represent this situation.

• 120

• 150

• 200

• 100

A car rental company has a maximum of 50 cars available for rent. If 30 cars are currently rented out, how many more can be rented? Write an inequality to express this.

• 15

• 20

• 25

• 10