keivonwtucker
keivonwtucker keivonwtucker
  • 24-01-2017
  • Mathematics
contestada

If y varies inversely as x, and y = 5 as x = -2, find y for the x-value of 3.

Respuesta :

skaur03 skaur03
  • 24-01-2017
since y varies inversely to x
xy = k
so 5*-2 = -10

plug x and k into xy = k

-10 = 3y
divide both sides with 3
y = -10/3  or -3.3333
Answer Link
apologiabiology
apologiabiology apologiabiology
  • 24-01-2017
y varies inversly as x means
y=k/x

k is constantt
find k

so
5=k/-2
times -2 both sides
-10=k

y=-10/x

when x=3

y=-10/3
Answer Link

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