Real-Life Algebra: Solve Equations & Identify Variables

A store sells pencils for $2 each. If you buy x pencils and spend $10, how many pencils did you buy?

• 7

• 10

• 3

• 5

Maria has 3 times as many marbles as John. If John has y marbles and together they have 48 marbles, how many marbles does Maria have?

• 24

• 12

• 18

• 36

A book costs $15. If you buy 2 books and have $x left, how much money did you start with?

• $20 + x

• $30 + x

• $25 + x

• $15 + x

Tom is 4 years older than his sister. If his sister is z years old, write an equation to find Tom's age.

• Tom's age = z + 4

• Tom's age = z - 4

• Tom's age = z + 2

• Tom's age = z + 1

A recipe requires 2 cups of sugar. If you want to make x batches of cookies, how many cups of sugar do you need?

• 2x

• 2x + 1

• 4 cups

• x cups

A car travels 60 miles per hour. If it travels for t hours, how far does it go? Write an equation to represent this.

• distance = 60t

• distance = 30t

• distance = 60t^2

• distance = 60 + t

The sum of a number n and 12 is 30. What is the value of n?

• 25

• 18

• 20

• 16

A rectangle has a length of 3 times its width. If the width is w, write an equation for the perimeter of the rectangle.

• P = 8w

• P = 4w

• P = 12w

• P = 6w

If you have $50 and spend $x on a video game, how much money do you have left?

• 50 - x

• 50 * x

• x - 50

• 50 + x

A gardener plants 5 rows of flowers with x flowers in each row. If there are 30 flowers in total, how many flowers are in each row?

• 6

• 8

• 7

• 5