Mastering Inequalities: Real-Life Word Problems & Graphs

A store sells notebooks for $2 each. If you want to spend no more than $20, how many notebooks can you buy? Write an inequality to represent this situation and graph it on a number line.

• 15

• 10

• 5

• 12

Maria has at least 15 marbles. If she buys more marbles, how many does she need to buy to have at least 25 marbles? Write an inequality and graph it on a number line.

• Maria needs to buy at least 15 marbles.

• Maria needs to buy at least 20 marbles.

• Maria needs to buy at least 5 marbles.

• Maria needs to buy at least 10 marbles.

A class trip costs $50 per student. If the total cost must be less than $600, how many students can attend? Write an inequality and graph it on a number line.

• 11

• 15

• 10

• 12

Tom is at least 5 feet tall. If he grows 2 inches, what will his height be in feet? Write an inequality to represent his height and graph it on a number line.

• Tom's height will be at least 5.1667 feet.

• Tom's height will be at least 4.5 feet.

• Tom's height will be exactly 5 feet.

• Tom's height will be at least 6 feet.

A recipe requires at least 3 cups of flour. If you have 1 cup, how many more cups do you need to buy? Write an inequality and graph it on a number line.

• You need to buy at least 1 more cup of flour.

• You need to buy at least 3 more cups of flour.

• You need to buy at least 2 more cups of flour.

• You need to buy at least 4 more cups of flour.

A concert ticket costs $30. If you have $100, how many tickets can you buy? Write an inequality and graph it on a number line.

• 3

• 2

• 4

• 5

The temperature must be above 32 degrees Fahrenheit for rain to fall. If the current temperature is 28 degrees, how many degrees does it need to rise? Write an inequality and graph it on a number line.

• The temperature needs to rise more than 4 degrees.

• The temperature needs to rise 2 degrees.

• The temperature needs to rise 6 degrees.

• The temperature needs to rise exactly 4 degrees.

A video game costs $60. If you have $45, how much more money do you need to buy the game? Write an inequality and graph it on a number line.

• You need $20 more to buy the game.

• You need $15 more to buy the game.

• You need $5 more to buy the game.

• You need $10 more to buy the game.

A farmer has at least 50 apples. If he sells some and has 30 left, how many apples did he sell? Write an inequality and graph it on a number line.

• The farmer sold at most 20 apples.

• The farmer sold at least 30 apples.

• The farmer sold no apples.

• The farmer sold exactly 25 apples.

A gym requires members to be at least 18 years old. If you are currently 16, how many more years do you need to wait? Write an inequality and graph it on a number line.

• 4

• 1

• 3

• 2