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Y varies directly as x.if y=-5 when x =15find x when y=3
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Y varies directly as x.if y=-5 when x =15find x when y=3
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Sep 22, 2017
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Y varies directly as x.if y=-5 when x =15find x when y=3
Mathematics
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Demaris
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y=kx
-5=k(15)
-5/15=k
-1/3=k
now,
y=-1/5x
3=-1/5x
3×5=-1(x)
15=-1(x)
multiplying both sides by -1,we get
-15=x
RAGINROSE
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Sep 26, 2017
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RAGINROSE
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