Translating Real-Life Scenarios into Algebraic Equations

A store sells pencils for $0.50 each. If you buy x pencils, how much do you spend? Write an equation to represent the total cost.

• total cost = 0.50 / x

• total cost = x + 0.50

• total cost = 0.50 - x

• total cost = 0.50 * x

Maria has 3 more than twice the number of books that John has. If John has y books, write an equation to express the number of books Maria has.

• 2y + 3

• y + 3

• 3y + 2

• 2y - 3

A car travels at a speed of 60 miles per hour. If it travels for t hours, how far does it go? Write an equation to represent the distance traveled.

• distance = 60 - t

• distance = 60t

• distance = 60t^2

• distance = 60 + t

The sum of a number z and 15 is equal to 50. Write an equation to find the value of z.

• z = 35

• z = 30

• z = 45

• z = 25

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? Write an equation to represent this.

• total flour = 2 * b

• total flour = 2 / b

• total flour = 2 - b

• total flour = b + 2

A movie ticket costs $12. If you buy m tickets, how much do you pay in total? Write an equation to express the total cost.

• total_cost = m - 12

• total_cost = 12 / m

• total_cost = 12 + m

• total_cost = 12 * m

The perimeter of a rectangle is 40 meters. If the length is l meters and the width is w meters, write an equation to represent the perimeter in terms of l and w.

• 2l + 2w = 40

• l + w = 20

• 2l + w = 40

• l + 2w = 40

A gardener plants x flowers in each row. If there are 5 rows, how many flowers are planted in total? Write an equation to express the total number of flowers.

• 5 * x

• 5 + x

• x - 5

• x / 5

A school has 200 students. If s students are in the 7th grade, how many students are not in the 7th grade? Write an equation to find the number of students not in the 7th grade.

• s * 200

• 200 - s

• s - 200

• 200 + s

The total cost of a meal is $50, including a tip of 20%. Write an equation to find the cost of the meal before the tip.

• x = 50 / 0.20 = 250

• x = 50 / 1.20 = 41.67

• x = 50 + 10 = 60

• x = 50 - 10 = 40