Real-Life Linear Equations: Check Solutions & Interpret

Maria has twice as many apples as John. If John has x apples, write an equation to represent the number of apples Maria has. How many apples does Maria have if John has 5 apples?

• 8 apples

• 15 apples

• 10 apples

• 5 apples

A book costs $15. If you buy x books, write an equation to find the total cost. How much will it cost to buy 3 books?

• $30

• $15

• $45

• $60

Tom is 4 years older than his sister. If his sister is y years old, write an equation to express Tom's age. How old is Tom if his sister is 10 years old?

• 12

• 14

• 8

• 16

A car rental company charges a flat fee of $20 plus $0.50 per mile driven. Write an equation to represent the total cost C for driving m miles. How much will it cost to drive 100 miles?

• $70

• $100

• $90

• $50

A swimming pool can be filled in 6 hours. If a hose can fill it in x hours, write an equation to find the rate of the hose. How long will it take if the hose can fill it in 12 hours?

• 8 hours

• 10 hours

• 12 hours

• 15 hours

Sarah has $50. She spends x dollars on a game. Write an equation to find out how much money she has left. How much does she have left if she spends $20?

• 40

• 10

• 30

• 25

A recipe requires 2 cups of flour for every x cookies. Write an equation to find the amount of flour needed for 24 cookies. How many cups of flour are needed?

• You need 4 cups of flour for 24 cookies.

• The recipe requires 1 cup of flour for every 12 cookies.

• You need 3 cups of flour for 24 cookies.

• The amount of flour needed depends on the value of x, which is not provided.

A concert ticket costs $30. If you buy x tickets, write an equation to find the total cost. How much will it cost to buy 4 tickets?

• $90

• $150

• $60

• $120

A train travels at a speed of 60 miles per hour. If it travels for x hours, write an equation to find the distance traveled. How far does it travel in 3 hours?

• 240 miles

• 180 miles

• 120 miles

• 150 miles

A gardener plants x flowers in each row. If there are 5 rows, write an equation to find the total number of flowers. How many flowers are there if there are 10 flowers in each row?

• 60

• 25

• 40

• 50