Question

Y varies inversely as the square of x. Y=1.5 when x=8 find y when x=5

Answer 1

Answer:

3.84

Step-by-step explanation:

It is given that

y ∝ 1/x²

So, let y = k/x² where 'k' is the constant of proportionality.

Using the given data,

1.5 = k/8² = k/64

∴ k = 64 * 1.5 = 96

Now, put x = 5 -

y = k/x² = 96/5² = 96/25 = 3.84

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