Real-Life Algebra: Create and Interpret Equations

A store sells pencils for $0.50 each. If you buy x pencils, how much will you spend? Write an equation to represent the total cost and solve for 10 pencils.

• $5.00

• $2.00

• $7.50

• $10.00

Maria has 3 times as many marbles as John. If John has y marbles, write an equation to express the number of marbles Maria has and find out how many marbles Maria has if John has 5 marbles.

• 10

• 20

• 25

• 15

A car rental company charges a flat fee of $20 plus $0.15 per mile driven. Write an equation for the total cost C for driving m miles and calculate the cost for driving 100 miles.

• $40

• $35

• $25

• $50

A gardener is planting flowers in rows. If there are r rows and each row has 8 flowers, write an equation to find the total number of flowers planted. How many flowers are there if there are 5 rows?

• 32

• 40

• 48

• 56

Tom is 4 years older than his sister. If his sister is s years old, write an equation to express Tom's age and determine Tom's age if his sister is 10 years old.

• 12

• 14

• 10

• 16

A recipe requires 2 cups of flour for every 3 cups of sugar. Write an equation to represent the relationship between flour (f) and sugar (s) and find out how much flour is needed if you use 6 cups of sugar.

• 3 cups of flour

• 2 cups of flour

• 4 cups of flour

• 6 cups of flour

A movie theater sells tickets for $12 each. If x tickets are sold, write an equation for the total revenue R and calculate the revenue if 50 tickets are sold.

• 720

• 600

• 480

• 300

A swimming pool can be filled in 6 hours by one hose. If two hoses are used, how long will it take to fill the pool? Write an equation to represent the situation and solve for the time taken with two hoses.

• 2 hours

• 4 hours

• 5 hours

• 3 hours

A book costs $15, and you have a budget of b dollars. Write an equation to find out how many books you can buy and determine how many books you can buy if your budget is $60.

• 4

• 3

• 2

• 5

A train travels at a speed of 60 miles per hour. Write an equation to express the distance d traveled in t hours and calculate the distance traveled in 3 hours.

• 90 miles

• 240 miles

• 180 miles

• 120 miles