12-10-2021
Mathematics

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HELP ME PLS
if y varies inversely with x, and y = 15/2 when x = 4, find x when y = 15/4

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busariade23 busariade23

12-10-2021

y=1/x
y=k/x
Where “k” is a constant
15/2=k/4
2k=60
k=60/2
k=30
:. 15/4=30/x
15x=120
x=120/15
:.x=8.

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