If x varies inverse as y, and x = 7 when y = 3, find y when x = 9.
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Answer: y=7/3
Step-by-step explanation:
As x varies inversely with y
K=x×y
k=7×3
k=21
K=x×y
21=9×y
9×y=21
y=21÷9
y=7/3
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