brooklyn4932
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PLEASE HELP WILL MARK BRAINLIEST!!!

(10 points also!)

If X varies inversely with y and x =6 when Y= 10, find y when x=8


A. Y=4.8

B. Y=7.5

C. Y=40/3

D. Y=4/15

Respuesta :

tramserran

Answer:   (B) 7.5

Step-by-step explanation:

Inversely means: x · y = k

Find k for the given x & y-values.  Then input the new x-value to find y.

x · y = k

6 · 10 = k

  60 = k


x · y = 60

8 · y = 60

    [tex]y=\dfrac{60}{8}[/tex]

       [tex]=\dfrac{15}{2}[/tex]

       = 7.5

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