Question 1 Report
If x is inversely proportional to y and x = 212 1 2 when y = 2, find x if y = 4
Answer Details
x α α 1y 1 y .........(1) x = k x 1y 1 y .........(2) When x = 212 1 2 = 52 5 2 , y = 2 (2) becomes 52 5 2 = k x 12 1 2 giving k = 5 from (2), x = 5y 5 y so when y =4, x = 5y 5 y = 114
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