y varies as X if Y
= 0.8 when x=0.5
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y varies as X if Y
= 0.8 when x=0.5
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Problem:
y varies as X if Y = 0.8 when x = 0.5
k = constant of variation
Solution:
y = kx
0.8 = k(0.5)
0.8/0.5 = k
k = 1.6
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