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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
 one year ago
 one year 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
 one year ago
 one year ago

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aroubBest ResponseYou've already chosen the best response.1
Because 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
 one year ago

aroubBest ResponseYou've already chosen the best response.1
And you can also use this way: x1*y1=x2*y2 (i think it's easier)
 one year ago

jordanguruuBest ResponseYou've already chosen the best response.0
how about this one?
 one year ago

jordanguruuBest ResponseYou've already chosen the best response.0
If 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
 one year ago

jordanguruuBest ResponseYou've already chosen the best response.0
i've already did and couldnt get it and i've asked someone on here and they couldnt figure it out
 one year ago

aroubBest ResponseYou've already chosen the best response.1
O.o Okay I'll do it but using the second way. x1*y1=x2*y2 10(20)=25(y) 200=25y y=8
 one year ago
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