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Y is INVERSELY proportional to x. When x = 3, y = 60. What is y when x = 4? Quick answer please!
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3 votes
Y is INVERSELY proportional to x. When x = 3, y = 60. What is y when x = 4?

Quick answer please!

User Purav
by
8.0k points

2 Answers

4 votes
ANSWER:y=80
3/4=60/x (Cross multiplication)
3y=240
3y/3=240/3
y=80
User Sima
by
7.4k points
5 votes
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
User Neanderthal
by
8.3k points
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