Solving Word Problems Equations

In 2010, a tree was 8 feet tall. In 2011 the tree was 14 feet tall. Which equation would be used to find how many feet the tree grew?

• f + 8 = 14

• f - 8 = 14

• f/8 = 14

• 8f=14

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 = 0.20x + 15

• C =15 (0.20x)

• C = 15 + x + 0.20

• C = 0.20 + 15x

WRITE AN EQUATION
Imani spent half of her weekly allowance playing mini-golf. To earn more money her parents let her wash the car for $4. What is her weekly allowance if she ended with $12?

• 0.5x+4=12

• x+4=12

• 12-4=x

• 12-4=0.5x

Jim paid a gym membership fee of $50, plus $20 per month. Jim has paid a total of $290 to the gym. Which equation could be used to determine how many months Jim has had his gym membership?

• 50 + 20m = 290

• 20 + 50m = 290

• 50 + 20 = m

• 50m - 20 = 290

Jason says that 10 less than one third of his age is 11 years old. How old is Jason?

• 3 years old

• 7 years old

• 57 years old

• 63 years old

Which expression could be used to represent the statement "2 years older than b?"

• b-2

• b+2

• b=2

• 2-b

Scott recently went shopping. He bought jeans for $35 and some shirts that were $7 each. If he spent $63 before tax, how many shirts did he buy?

• x = 4

• x = 5

• x = 3

• x = 4.5

Terry had his car repaired at Ace Auto.  He was charged $50 per hour of labor plus $150 for parts.  His total bill for the repair before tax was $375.  How many hours of labor was Terry charged for?

• 2.5 hours

• 4.5 hours

• 7.5 hours

• 10.5 hours

Emily rented a bike from Matt's Bikes.  It cost $16 plus $5 per hour.  If Emily paid $46, then she rented the bike for hour many hours?

• 4 hours

• 7 hours

• 9 hours 12 minutes

• 6 hours

The length of a rectangle is 4 meters more than its width. The perimeter of the rectangle is 68 meters. What are the length and with of the rectangle?

• length = 19, width = 15

• Length = 15; width = 19

• Length = 15; width = 11

• length = 19; width = 23