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OpenStudy (anonymous):
The number of miles driven varies directly with the number of gallons of gas used Erin drove 297miles on 9 gallons. Write a direct variation equation to represent this situation.
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OpenStudy (anonymous):
297=k9. k=33. So the eq'n is y=33x where y is the miles and x is the gallons of any number you want to plug in.
OpenStudy (anonymous):
i dont get it
OpenStudy (anonymous):
Direct variation is one goes up and the other does as well. So that is the basic form of the eq'n.
OpenStudy (anonymous):
oh ok
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