Question

If x varies inversely with y and x = 8 when y = 6, find y when x = 10.

Answer 1

hmm well lets say we multiply x by 2 so 10 x 2 = 20 and divide 6 by 2 making it 6/2=3. i believe that is how its done..not sure.

Answer 2

A. y = 5/12

B. y = 4.8

C. y = 7.5

D. y = 40/3

Answer 3

those are the answers

Answer 4

or one of them is

Answer 5

*tilts head to the side* uh...i dunno now XD
@agent0smith @eliassaab

Answer 6

me either :(

Answer 7

@AngelWilliams16 @thadyoung @tester97

Answer 8

Ok first off do you know what it means when you have indirect variation?

Answer 9

@bibby @mathmale

Answer 10

How do you expect help if you dont tell me what you know? >.<

Answer 11

@Cookie_009

Answer 12

x varies inversely with y
means
x = k/y where k is some constant. First, find it by plugging in x = 8 when y = 6

Answer 13

Well my sister was helping me and she told me it was A but i thought it was C

Answer 14

y = k/x where k is some constant.

First, find it by plugging in x = 8 and y = 6

Answer 15

Then once you have k, plug it in and x=10 into:

y = k/x

and find y.

Answer 16

so i was right its C

Answer 17

@agent0smith

Answer 18

I don't know, haven't worked it out. Show your work of how you got the answer, and I or someone will check it.

Answer 19

ughhh i just need to know it im just checking my asnwers

Answer 20

k
y= ------
x
so plug in 8 and 6

k
6= ------
8
multiply 8 on both sides and you have

48=k
then plug k back in when x=10

48
y= ------
10
do simple division

y= 4.8

so the answer would be choice B

Answer 21

thankyou can u help me with 1 more!!

Answer 22

^if you'd showed your work, we might've noticed what you were doing wrong, which would help you.