Mastering Algebra: Solving Real-World Word Problems

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 = 0.50 * x

• total cost = x + 0.50

• total cost = 0.50 + x

Maria has 3 times as many marbles as John. If John has x marbles, how many does Maria have? Write an equation to express this relationship.

• M = x/3

• M = 3x

• M = 2x

• M = x + 3

A car rental company charges a flat fee of $20 plus $0.15 per mile driven. If you drive m miles, write an equation for the total cost of the rental.

• C = 20 - 0.15m

• C = 20m + 0.15

• C = 20 + 0.15m

• C = 0.15 + 20m

Tom is 4 years older than his sister. If his sister is x years old, how old is Tom? Write an equation to show their ages.

• Tom's age = x + 4

• Tom's age = x + 2

• Tom's age = 2x

• Tom's age = x - 4

A recipe requires 2 cups of flour for every 3 cups of sugar. If you have y cups of sugar, how many cups of flour do you need? Write an equation to represent this.

• y + 2

• y / 3

• (3/2) * y

• (2/3) * y

A school is planning a field trip. The cost per student is $15, and there are s students going. Write an equation for the total cost of the trip.

• total cost = 15 - s

• total cost = 15 * s

• total cost = s + 15

• total cost = 15 / s

Lily has $50. She spends x dollars on a book. Write an equation to find out how much money she has left after her purchase.

• 50 - x

• 50 + x

• 50 - 50

• x - 50

A gardener plants 5 rows of flowers with x flowers in each row. Write an equation to find the total number of flowers planted.

• total flowers = 5 + x

• total flowers = 5 * x

• total flowers = x - 5

• total flowers = 5 / x

A movie theater charges $10 per ticket. If you buy t tickets, write an equation to find the total amount spent on tickets.

• total = 10 * t

• total = t + 10

• total = 10 - t

• total = 10 / t

A train travels at a speed of 60 miles per hour. If it travels for h hours, write an equation to find the total distance traveled.

• distance = 60 + h

• distance = 60h

• distance = h/60

• distance = 60h^2