Equations Word Problems One Variable The Same

Mrs. Cathy, Mrs. Mitchell, Coach Mullins, and Mrs. Norris divided the cost of a pizza evenly.  If they each paid $6.50, what was the total cost of the pizza? 

• c/4 =6.50

• 4c = 6.50

• 6.50 +c = 4

• c - 4 = 6.50

In 2016, a giraffe was 8 feet tall. In 2017 the giraffe was 14 feet tall. Write an equation and find how many feet  the giraffe grew. Write an equation to solve this problem. Use g as your variable.

• g + 8 = 14

• g - 8 = 14

• g/8 = 14

• 8g=14

The goal of solving equations is to _________________.

331 students went on a field trip. Six buses were filled and 7 students traveled in cars. Which equation will allow you to find how many students were in each bus?

Which equation would describe "two times a number plus five equals 15"?

• x + 5 = 15

• 2x + 5=15

• x + 2(5) = 15

• 2(x + 5) = 15

A fitness club opens with 80 members. Each month the membership increases by 15 members. Which equation represents the relationship between the number of months the club has been opened, x, and the total fitness club membership, y?

• y=15x

• y=15x+80

• y=x+15

• y=80x+15

Speedy Boat Rental charges a $15 deposit fee plus $2 for each hour of use to rent a paddle boat.  Write an equation for C, the total cost, to rent the boat for h hours.

• h = 2C + 15

• C = 15h + 2

• h = 15C + 2

• C = 2h + 15

The Roaming Cell Phone Company charges $15.00 per month plus $0.20 per minute of airtime usage.  If Juanita uses x minutes of airtime, what is an equation that can be used to determine her monthly cell phone bill (C)?

• C = 15 + 0.20x

• C =15 (0.20x)

• C = 15 + x + 0.20

• C = 0.20 + 15x

Bob's Plumbing charges $15 per hour plus a service fee of $40 for coming out to your house. Which equation models this situation?

• y = 15x + 40

• y = 40x + 15

• y = 15x

• y = 15x - 40

Dexter's Gym charges a one-time registration fee of $40 and $20 each month. The total fee after x months is $340. Which equation models this situation?

• 40x + 20 = 340

• 20x + 40 = 340

• 20x - 40 = 340

• 20 + 340 = 40x