Creating Equations from Real-Life Scenarios in Algebra

A store sells pencils for $2 each. If you buy x pencils, how much do you spend? Write the equation that represents this scenario.

• total cost = x + 2

• total cost = 2 - x

• total cost = 2 + x

• total cost = 2 * x

Maria has 3 times as many marbles as John. If John has y marbles, how many does Maria have? Create an equation to show this relationship.

• M = 3y

• M = y + 3

• M = 4y

• M = 2y

A car travels at a speed of 60 miles per hour. How far will it travel in t hours? Formulate the equation for this situation.

• distance = 60t

• distance = 30t

• distance = 60t^2

• distance = 60 + t

The sum of a number z and 15 is equal to 50. Write the equation that represents this word problem.

• z + 50 = 15

• z + 15 = 50

• z - 15 = 50

• z + 15 = 45

A recipe requires 2 cups of flour for every batch of cookies. If you want to make b batches, how many cups of flour do you need? Create the corresponding equation.

• total flour = 2 * b

• total flour = b + 2

• total flour = 2 / b

• total flour = 2 - b

Tom is 5 years older than his sister. If his sister is s years old, write an equation to express Tom's age.

• Tom's age = s + 10

• Tom's age = 5 - s

• Tom's age = s + 5

• Tom's age = s - 5

A movie ticket costs $10. If you buy m tickets, how much do you pay in total? Formulate the equation for this scenario.

• total_cost = 10 - m

• total_cost = 10 * m

• total_cost = m + 10

• total_cost = 10 / m

The perimeter of a rectangle is 2 times the sum of its length l and width w. Write the equation that represents this relationship.

• P = l + w

• P = 2(l + w)

• P = 2l + 2w

• P = 2lw

A gardener plants x flowers in each row. If there are 4 rows, how many flowers are planted in total? Create the equation for this situation.

• x + 4

• 4x + 1

• 4x

• 4 + 4x

If a book costs $15 and you have b books, how much money do you need? Write the equation that represents this scenario.

• 15 + b

• b - 15

• 15 * b

• b / 15