ngearhartrobboy ngearhartrobboy
  • 26-05-2022
  • Mathematics
contestada

If x and y vary inversely, and y =6 when x=7, what is the constant of variation

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obinnachetachukwu
obinnachetachukwu obinnachetachukwu
  • 26-05-2022

Answer:

x alpha 1/y

: Introducing a constant k

x = k/y

where x = 7, y= 6

7 = k / 6

Cross Multiply

K ( constant) = 42

Answer Link
rdacoder
rdacoder rdacoder
  • 26-05-2022

Answer: k = 42

Step-by-step explanation:

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

plug in values:

6 = [tex]\frac{k}{7}[/tex]

multiply both sides by 7

k = 42

Answer Link

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