Two Variable Equations

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

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Write an equation that could be used to find how many packs of DVDs you can buy with 168 dollars if one pack costs 12 dollars.

• 168x = 12
• 12x = 168
• 12(168) = x
• 12 / x = 168

Tags

CCSS.HSA.CED.A.3

Tim's high school played 14 football games this year. The team won most of their games. They were defeated during 2 games. Write an equation that could be used to find how many games they won.

• 14 + x = 2
• x - 2 = 14
• x + 2 = 14
• 14 + 2 = x

Tags

CCSS.HSA.CED.A.3

There were 39 bales of hay in the barn. Jason stacked more bales in the barn today. There are now 95 bales of hay in the barn. Write an equation that could be used to find how many bales did he stored in the barn.

• x + 39 = 95
• 39 + 95 = x
• x + 95 = 39
• 39x = 95

Tags

CCSS.HSA.CED.A.3

Twice a number is 28. Write an equation that could be used to find that number.

• 28x = 2
• 2x = 28
• x/2 = 28
• 2/x = 28

Tags

CCSS.HSA.CED.A.3

Translate the sentence into an equation:
Four more than six times a number is 18.

• 10x = 18
• 4x + 6 = 18
• 4 + 6x = 18
• not enough info

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.6

CCSS.6.EE.B.7

Translate the sentence into an equation.
Seven subtracted from n is 18 

• n + 7 = 18
• 7 - n = 18
• n - 7 = 18
• n + 7 = 18n

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.6

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

Tags

CCSS.HSF-BF.A.1A

Greg gets paid $6 an hour working in a garden. Use the equation m=6h, where m is the money he makes, and h is the hours he works. How much money does he make if he works 9 hours?

• $15
• $3
• $54
• $53

Tags

CCSS.HSF-LE.A.1B

Carey and Justin are raising money to purchase books for their school's library. The more money they raise, the more books they will be able to purchase for the library.
m = the amount of money Carey and Justin raise
b = the number of books Carey and Justin will be able to purchase
Which of the variables is dependent?

• m
• b

Tags

CCSS.6.EE.C.9