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anonymous
 4 years ago
If x varies inversely as y and x = 48 when y = 4, find y when x = 3.
A. y = 16
B. y = 12
C. y = −4
D. y = 64
anonymous
 4 years ago
If x varies inversely as y and x = 48 when y = 4, find y when x = 3. A. y = 16 B. y = 12 C. y = −4 D. y = 64

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aroub
 4 years ago
Best ResponseYou've already chosen the best response.2Because it varies inversely so it's, xy=k, we just substitute the values that are given in the equation to find k: xy=k 48(4)=k 192=k xy=k 3(y)=192 y=64

aroub
 4 years ago
Best ResponseYou've already chosen the best response.2And you can also use this way: x1*y1=x2*y2 (i think it's easier)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0If x varies inversely as y and x = 10 when y = 20, find y when x = 25. A. y = 8 B. y = 5 C. y = −10 D. y = 4

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i've already did and couldnt get it and i've asked someone on here and they couldnt figure it out

aroub
 4 years ago
Best ResponseYou've already chosen the best response.2O.o Okay I'll do it but using the second way. x1*y1=x2*y2 10(20)=25(y) 200=25y y=8
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