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Mathematics 15 Online
OpenStudy (anonymous):

***Medal & fan*** Jackson put twelve gallons of gasoline in his dad”s car and spent twenty-four dollars. Use a direct variation to determine how many gallons of gasoline he put in his mom”s car if he spent twenty dollars. 8 gal ten gal sixteen gal eighteen gal ______________________ In a direct variation, y is negative eighteen when x is 9. What is y when x equals negative six? negative twelve negative three 3 twelve ________________________________________ Which ordered pair lies in Quadrant three? (-7,-1) (0,1) (-3,4) (4,-6)

OpenStudy (anonymous):

How much is a gallon of gas?

OpenStudy (anonymous):

Lets figure it out together.

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

Do you know how to start this problem?

OpenStudy (anonymous):

nope

OpenStudy (anonymous):

24 dollars / 12 gallons of gas = price per gallon

OpenStudy (anonymous):

okay

OpenStudy (anonymous):

What did you get as the price per gallon?

OpenStudy (anonymous):

well its 24/12 so 2

OpenStudy (anonymous):

Perfect. So 20 dollars spent on moms car / 2 dollars per gallon = amount of gas put into moms car.

OpenStudy (anonymous):

10

OpenStudy (anonymous):

Great!

OpenStudy (anonymous):

thanks

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