x varies inversely as y^2, and x=4 when y=10. find x when y=2
Since Inversely proportionals is given: \[x = \frac{k}{y^2}\] Where k is any constant.. Now you have given x = 4 and y = 10 Plug in the values and find k first..
so like this 4 = k/2^2
Yes but at first y is given 10.. So use y = 10..
so 400
Yes you are right.. Now you got k = 400 (remember this value).. Now, we have to find x but y is given as 2.. Can you find x ?? k = 400 and y = 2
100
Yes absolutely right... Good Job..
thank you
Welcome dear..
i just did help setting it up
I have one more like that I am gonna try it can you tell me if I am right
See the difference here if the question says x varies directly as y squared then the equation would be: \[x = ky^2\] In short: Inversely means in denominator. Directly means in numerator.. And note that the constant k will always be in Numerator..
okay thanks again
Take your time try it once and I will check if it is right or not..
x varies inversely as v, and x = 48 when v = 8. Find x when v = 64 so I got x = 6
What you got for k ??
384
Yes dear..
384/64 = 6
thanks again
Now do you understand how to solve them??
yes I do
So, Best Of Luck.. Generally I do not give medals easily but this one for you for doing the Second Problem firstly on your own and secondly absolutely right... Ha ha ha ha..
thanks
Welcome dear..
it has just been a long time for me I have been out of school for over 25 years and I am trying to get my high school diploma by myself online
Your age???
41
i quit school when I was 16
never had freshman credits
O My God, can you imagine I am exactly 20 years younger than you.. I am just 21 now.. Doesn't matter.. Forget the past, Live in Present and Think about making the Future wonderful.. Best of Luck dear.. I pray, you will have your diploma at the earliest...
thank you so much I raised my kids they are all in college now it is time for myself
Yes Best of Luck for today tomorrow and for future...
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