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Nostrana [21]
3 years ago
12

Please I need the answer only​

Mathematics
1 answer:
lawyer [7]3 years ago
6 0

Answer:

w = 1.6

Step-by-step explanation:

Given w varies inversely as \sqrt{x} then the equation relating them is

w = \frac{k}{\sqrt{x} } ← k is the constant of variation

To find k use the condition when x = 4, w = 4

k = w\sqrt{x} = 4 × \sqrt{4} = 4 × 2 = 8

w = \frac{8}{\sqrt{x} } ← equation of variation

When x = 25, then

w = \frac{8}{\sqrt{25} } = \frac{8}{5} = 1.6

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