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OpenStudy (anonymous):
Suppose y varies directly with x. Write an equation relating x and y. y=-12 when x=20 a y=-2/5x b y=-5/3x c -3/5x d y=3/5x
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OpenStudy (lynfran):
y=kx -12=k20 -12/20=k -3/5=k so y=kx would give y=-3/5x
OpenStudy (anonymous):
thank you
OpenStudy (lynfran):
welcome
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