Question on: JSS3 Mathematics - Variations
If ๐ฆ varies inversely as ๐ฅ and ๐ฆ=20 when ๐ฅ=4, find ๐ฆ when ๐ฅ=5.
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Given ๐ฆ=๐/๐ฅ, substituting the given values:
20=๐/4
Solving for ๐:
๐=20โ 4=80
Now, find ๐ฆ when ๐ฅ=5:
๐ฆ=80/5=16
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