Formulating and Solving Linear Equations in Real Life

A store sells pencils for $0.50 each. If you buy x pencils, write an equation to represent the total cost. What is the total cost if you buy 10 pencils?

• $5.00

• $2.00

• $7.50

• $10.00

Maria has $20. She spends $2 for each book she buys. Write an equation to represent how many books she can buy. How many books can she buy if she wants to spend all her money?

• 5

• 15

• 8

• 10

A car rental company charges a flat fee of $30 plus $0.20 per mile driven. Write an equation for the total cost (C) based on the number of miles (m) driven. What is the total cost if she drives 50 miles?

• $30

• $50

• $40

• $60

Tom is saving money to buy a video game that costs $60. He saves $5 each week. Write an equation to represent the number of weeks (w) it will take him to save enough money. How many weeks will it take?

• 20 weeks

• 15 weeks

• 12 weeks

• 8 weeks

A gardener plants flowers in rows. Each row has 8 flowers, and there are r rows. Write an equation for the total number of flowers (F). How many flowers are there if there are 5 rows?

• 40

• 56

• 48

• 32

A phone plan costs $25 per month plus $0.10 per text message. Write an equation for the total monthly cost (C) based on the number of text messages (t) sent. What is the total cost if 100 messages are sent?

• $35

• $25

• $15

• $50

A school is organizing a field trip. The cost per student is $15, and there are s students attending. Write an equation for the total cost (T) of the trip. What is the total cost if 30 students attend?

• $600

• $150

• $300

• The total cost is $450.

Lily is making bracelets. Each bracelet requires 3 beads. If she has b beads, write an equation to find out how many bracelets she can make. How many bracelets can she make with 24 beads?

• 10

• 8

• 6

• 12

A train travels at a speed of 60 miles per hour. Write an equation to represent the distance (d) traveled after t hours. How far does the train travel in 3 hours?

• 180 miles

• 120 miles

• 90 miles

• 240 miles

A recipe calls for 2 cups of flour for every batch of cookies. If you want to make b batches, write an equation for the total cups of flour (F) needed. How many cups of flour are needed for 4 batches?

• 10 cups of flour

• 8 cups of flour

• 6 cups of flour

• 4 cups of flour