Real-Life Algebra: Word Problems & Expressions for 7th Graders

A store sells pencils for $2 each and erasers for $3 each. If you buy x pencils and y erasers, write an expression for the total cost. What is the total cost if you buy 4 pencils and 3 erasers?

• 15

• 20

• 10

• 17

Maria has 5 more than twice the number of books that John has. If John has b books, write an expression for the number of books Maria has. How many books does Maria have if John has 6 books?

• 14

• 12

• 17

• 20

A recipe requires 3 cups of flour for every 2 cups of sugar. If you want to make x batches of the recipe, write an expression for the total cups of flour needed. How much flour is needed for 4 batches?

• 10 cups

• 8 cups

• 12 cups

• 6 cups

A car travels 60 miles per hour. Write an expression for the distance d traveled in t hours. How far does the car travel in 3 hours?

• 180 miles

• 240 miles

• 120 miles

• 90 miles

The perimeter P of a rectangle is given by the formula P = 2l + 2w, where l is the length and w is the width. If the length is 5 meters and the width is 3 meters, what is the perimeter?

• 18 meters

• 16 meters

• 20 meters

• 14 meters

A movie theater charges $10 per ticket. If you buy t tickets, write an expression for the total cost. What is the total cost for 7 tickets?

• 100

• 80

• 70

• 50

A gardener plants x flowers and y shrubs. If the total number of plants is 15, write an equation to represent this situation. How many flowers are there if there are 10 shrubs?

• 7

• 8

• 5

• 12

A school has 200 students, and the number of students in each grade is represented by g. If there are 4 grades, write an expression for the average number of students per grade. What is the average if there are 200 students?

• 60

• 70

• 50

• 40

A box contains x apples and y oranges. If there are 12 fruits in total, write an equation to represent this. How many apples are there if there are 8 oranges?

• 4

• 10

• 5

• 3

A bike rental shop charges a flat fee of $15 plus $5 for each hour rented. Write an expression for the total cost C for h hours. What is the total cost for 3 hours?

• 25

• 40

• 35

• 30