y varies inversely with x. If y = 4 when x = 5 , find y when x = 3 .
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y varies inversely with x. If y = 4 when x = 5 , find y when x = 3 .
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Answer:
y = 20/3 = 6 2/3 = 6.666...
Step-by-step explanation:
y varies inversely with x
y = k/x where k is the constant of variation
y = 4 and x = 5
y = k/x
4 = k/5
k = 4 ( 5 )
k = 20
x = 3, find y.
y = k/x
y = 20/3
y = 20/3 = 6 2/3 = 6.666...