breew9773 breew9773
  • 08-01-2020
  • Mathematics
contestada

If x varies inversely as y, and x=27 when y=6 find x when y=2

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carlosego
carlosego carlosego
  • 14-01-2020

For this case we have that the inverse variation is defined as:

[tex]y = \frac {k} {x}[/tex]

Where:

k: It is the constant of proportionality

According to the statement we have:

[tex]x = 27\\y = 6\\6 = \frac {k} {27}[/tex]

We find the constant of proportionality:

[tex]k = 27 * 6\\k = 162[/tex]

Then we find the value of x when [tex]y = 2[/tex]:

[tex]2 = \frac {162} {x}\\x = \frac {162} {2}\\x = 81[/tex]

Answer:

[tex]x = 81[/tex]

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