Respuesta :
Answer:
y = 150
Step-by-step explanation:
y varies inversely as x²
yx² = k
----------------
y = 6 when x = 30
6(30²) = k
6(900) = 5400
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what is y when x = 6
y(6²) = 5400
y(36) = 5400
y = 5400/36
y = 150
Answer:
y= 150
Step-by-step explanation:
[tex]y\ \alpha \ \frac{1}{x^2}\\\\y = k \times \frac{1}{x^2}\\\\[/tex]
Given y = 6, and x = 30. Find k.
[tex]6 = k \times \frac{1}{30^2}\\\\6 \times 900 = k\\\\5400 = k[/tex]
Given x = 6 and k = 180. Find y
[tex]y = 5400\times \frac{1}{6^2}\\\\[/tex]
[tex]=5400 \times \frac{1}{36}\\\\=150[/tex]