Real-Life Linear Expressions: Identify & Solve for Unknowns

A store sells pencils for $2 each. If you buy x pencils, how much will you spend? Write the linear expression for the total cost.

• x/2

• 2+x

• x

• 2x

Maria has 5 more than twice the number of books that John has. If John has y books, write a linear expression for the number of books Maria has.

• 3y + 5

• 2y + 5

• y + 5

• 2y - 5

A car rental company charges a flat fee of $30 plus $15 for each day you rent the car. Write a linear expression for the total cost of renting the car for d days.

• 30 + 15d

• 30 + 10d

• 15d + 30

• 30d + 15

If a recipe requires 3 cups of flour and you want to make x batches, how many cups of flour do you need? Write the linear expression for the total flour needed.

• 3x

• 3x + 1

• 4x

• 2x

A gardener plants 4 rows of flowers with x flowers in each row. Write a linear expression for the total number of flowers planted.

• 4x

• 2x

• x+4

• 4+x

Tom has $50. He spends $10 each week. Write a linear expression to represent how much money he has left after w weeks.

• 50 + 10w

• 50 - w

• 10w - 50

• 50 - 10w

A school is selling tickets for a play. Each ticket costs $8. If a class sells t tickets, write a linear expression for the total money raised.

• 10t

• 8t + 2

• 6t - 4

• 8t

A bike shop sells bikes for $200 each. If they sell b bikes, how much money do they make? Write the linear expression for the total sales.

• 100b

• b + 200

• 250b

• 200b

Samantha is saving money for a new phone. She saves $25 each week. Write a linear expression for the total amount she saves after w weeks.

• 25w

• 20w

• 25 + w

• 30w

A factory produces 100 toys each hour. If the factory operates for h hours, write a linear expression for the total number of toys produced.

• 50h

• 200h

• 100 + h

• 100h