Representing Situations with Equations

Orange Box charges $3.00 to rent a movie. Write an equation to represent the cost of renting x movies.

• y= 3.00x

• x= 3.00y

• y=1.5x

• y=3.00x + 3

The Anderson Soccer Team holds a car wash to raise money. The team spends $12.50 on supplies and charges $5.00 per carwash. Write an equation to represent the amount of profit.

• y = 12.50x + 5.00

• y= 5.00x + 12.50

• y=5.00x - 12.50

• y= 12.50x - 5.00

Kaylee has a giftcard for $25 for Starbucks. She buys a $3.00 drink everyday with her giftcard. Write an equation to represent the situation.

• y= 25 - 3.00x

• y= 25x + 3.00

• y= -3.00x - 25

• Y=3.00x +25

A balloon is released from the ground. The balloon rises at a rate of 2 feet per second. What equation represents the height of the balloon after x seconds?

• y= 50x

• y=2x

• y= 2x +50

• y= 50x + 2

An art studio charges $45 per month for art lessons. Which equation best describes the total cost, y, given the number of months, x?

• y= 45x - 30

• y= 75x

• y= 30x + 45

• y= 45x

Mrs. Ceja plants a tomato plant in her garden. The tomato plant grows at a rate of 2 inches per week. what equation would show the relationship?

• y= 2x

• y= 0.5x + 4

• y= x + 2

• y= 2 - x

The temperature for December 1st in Arlington, Texas started at 45 degrees. During the day, the temperature increased by 3 degrees per hour. What equation can represent this situation?

• y= -1x - 45

• y= -3x + 45

• y= 3x + 45

• y= 1x + 45

Music Rental Warehouse rents trumpets for $23 per month. A cleaning fee of $40 is charged when you return the instrument. What is the cost of renting a trumpet for x months?

• y= -23x -40

• y= 40x + 23

• y= 23x + 40

• y= 63x

A water tank is filled with 100 gallons of water per hour. What is the equation that will represent this situation?

• x = 100y

• y= x + 100

• y= x - 100

• y= 100x

Mr. Hernandez goes to WallyWorld and buys turkey from the deli for $3.45 per pound. He also buys a loaf of bread for $0.96. What equation can be used to represent the total cost of Mr. Hernandez's trip to WallyWorld?

• y= 0.96x + 3.45

• y= 0.96x - 3.45

• y= 3.45x - 0.96

• y= 3.45x + 0.96