Translate Real-Life Scenarios into Linear Equations

A store sells pencils for $0.50 each. If you buy x pencils and spend $4.00, how many pencils did you buy?

• 10

• 12

• 8

• 6

Maria has twice as many marbles as John. If John has y marbles, write an equation to represent the number of marbles Maria has.

• M = y

• M = 2y

• M = y/2

• M = 3y

A car rental company charges a flat fee of $20 plus $0.15 per mile driven. If you drove m miles and paid $35, how far did you drive?

• 120 miles

• 75 miles

• 50 miles

• 100 miles

A gardener is planting flowers in rows. If he plants x flowers in each row and has 5 rows, write an equation to find the total number of flowers planted.

• total flowers = 5x

• total flowers = 5x + 1

• total flowers = 5 + x

• total flowers = x - 5

Tom is 3 years older than his sister. If his sister is s years old, write an equation to express Tom's age.

• Tom's age = s + 5

• Tom's age = s - 3

• Tom's age = 2s + 3

• Tom's age = s + 3

A book costs $15. If you buy b books and spend $60, how many books did you buy?

• 2

• 4

• 5

• 3

A recipe requires 2 cups of flour for every 3 cups of sugar. If you use s cups of sugar, write an equation to find the amount of flour needed.

• flour = (2/3) * s

• flour = s + 2

• flour = (3/2) * s

• flour = s - 3

A movie theater charges $10 for an adult ticket and $5 for a child ticket. If you buy a total of t tickets and spend $50, how many adult tickets did you buy?

• 5 - t

• 10 - t

• 2t - 10

• t - 5

A swimming pool is being filled with water at a rate of 5 gallons per minute. If it takes m minutes to fill the pool, write an equation to find the total gallons of water needed.

• total gallons = 5 + m

• total gallons = 10 * m

• total gallons = m / 5

• total gallons = 5 * m

Lily has $50. She spends x dollars each week. Write an equation to find out how many weeks she can spend money before she runs out.

• w = 50 * x

• w = 50 - x

• w = 50 + x

• w = 50 / x