Solving Multi-Step Equations: Variables and Expressions

A store sells pencils for $2 each and erasers for $3 each. If you buy a total of 10 items and spend $24, how many pencils and erasers did you buy?

• 5 pencils and 5 erasers

• 6 pencils and 4 erasers

• 4 pencils and 6 erasers

• 7 pencils and 3 erasers

Maria has twice as many marbles as John. If John has x marbles and together they have 36 marbles, how many marbles does each person have?

• John has 12 marbles and Maria has 24 marbles.

• John has 18 marbles and Maria has 36 marbles.

• John has 15 marbles and Maria has 30 marbles.

• John has 10 marbles and Maria has 26 marbles.

A recipe requires 3 cups of flour and 2 cups of sugar. If you want to make 4 batches of the recipe, how many cups of flour and sugar do you need in total?

• 12 cups of flour and 8 cups of sugar

• 15 cups of flour and 10 cups of sugar

• 10 cups of flour and 6 cups of sugar

• 8 cups of flour and 4 cups of sugar

In a class, the ratio of boys to girls is 3:5. If there are 40 students in total, how many boys and girls are in the class?

• 15 boys and 25 girls

• 25 boys and 15 girls

• 20 boys and 20 girls

• 10 boys and 30 girls

A gardener is planting flowers in rows. If each row has 6 flowers and he wants to plant a total of 48 flowers, how many rows will he need?

• 12

• 8

• 10

• 6

A book costs $15, and there is a sale where you can buy 3 books for the price of 2. If you want to buy x books, how much will you spend?

• (x // 2) * 30 + (x % 2) * 15

• (x // 3) * 30 + (x % 3) * 15

• (x // 3) * 15 + (x % 3) * 30

• x * 15

A swimming pool is filled with water at a rate of 5 gallons per minute. If the pool can hold 300 gallons, how long will it take to fill the pool?

• 30 minutes

• 60 minutes

• 90 minutes

• 120 minutes

A school is organizing a field trip. The cost per student is $25, and there are x students attending. If the total cost is $500, how many students are going on the trip?

• 25

• 15

• 20

• 30

A pizza place sells small pizzas for $8 and large pizzas for $12. If you buy a total of 5 pizzas and spend $56, how many small and large pizzas did you buy?

• 1 small pizza and 4 large pizzas

• 5 small pizzas and 0 large pizzas

• 3 small pizzas and 2 large pizzas

• 2 small pizzas and 3 large pizzas