x
is inversely proportional to y. x=22 while y=5. Find y when x is 10.
Solution
x ⍺ k
y
x = k
y
22 = k
5
k =
22 x 5
k =
110
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
k =
110, y= ?, x = 10.
x = k
y
10 = 110
y
y x 10 = 110
x y (multiply by y on both sides)
y
10y = 110
10
10
Hence y = 11.
TRY THIS…………….
x
is inversely proportional to y. x=80 while y=4. Find y when x is 8.
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