helpmeh6 helpmeh6
  • 12-12-2016
  • Mathematics
contestada

y is INVERSELY proportional to x. When x = 3, y = 60. What is y when x = 4?

Quick answer please!

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Bandit3
Bandit3 Bandit3
  • 12-12-2016
ANSWER:y=80
3/4=60/x (Cross multiplication)
3y=240
3y/3=240/3
y=80
Answer Link
bcalle
bcalle bcalle
  • 12-12-2016
y = (k/x) is the inverse proportion equation.
Substitute the x and y values that you know to solve for the k, constant of
variation.
60 = (k/3) Solving you get k = 180
y = (180/4)
y = 45
Answer Link

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