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saifoo.khan
 one year ago
Best ResponseYou've already chosen the best response.2\[mean = \frac{\sum fx}{\sum x}\]

wio
 one year ago
Best ResponseYou've already chosen the best response.0ah, so it's just a weighted average.

kropot72
 one year ago
Best ResponseYou've already chosen the best response.0Solve the following for x: \[\frac{12(x5)+40x+8(x+5)}{60}=10\]

hba
 one year ago
Best ResponseYou've already chosen the best response.1Whatt is the general formula @kropot72

ParthKohli
 one year ago
Best ResponseYou've already chosen the best response.2\[\dfrac{\underbrace{x  5 + x  5 \cdots+ x5}_{\rm 12 ~times} + \underbrace{x + x\cdots x + x}_{\rm 40 ~ times} + \underbrace{x + 5 +\cdots+ x+5}_{\rm 8 ~times}}{12 + 40 + 8}\]

hba
 one year ago
Best ResponseYou've already chosen the best response.1Thanks a lot but there would be some general form of this :/

saifoo.khan
 one year ago
Best ResponseYou've already chosen the best response.2I wrote the general formula already.

hba
 one year ago
Best ResponseYou've already chosen the best response.1Shouldnt it be, \[\sum_{}^{}fx/\sum_{}^{}f\]

saifoo.khan
 one year ago
Best ResponseYou've already chosen the best response.2\[Arithmetic => \frac{x+y}{2} = 10.2\]

saifoo.khan
 one year ago
Best ResponseYou've already chosen the best response.2Geo mean formula: √(xy)

hba
 one year ago
Best ResponseYou've already chosen the best response.1Do i have to solve quad equations?

saifoo.khan
 one year ago
Best ResponseYou've already chosen the best response.2take square on both sides: xy = sqrt8.4 x = sqrt(8.4)/y

saifoo.khan
 one year ago
Best ResponseYou've already chosen the best response.2Now substitute this in the first equation

hba
 one year ago
Best ResponseYou've already chosen the best response.1sqrt(xy)=8.4 xy=70.56 x=70.56/y

saifoo.khan
 one year ago
Best ResponseYou've already chosen the best response.2Actually i'm doing two things at once. XD

hba
 one year ago
Best ResponseYou've already chosen the best response.1No worries c:,This thing is going into a quad equation :(

hba
 one year ago
Best ResponseYou've already chosen the best response.1x=77.16,56.76 and y=77.16,56.76

hba
 one year ago
Best ResponseYou've already chosen the best response.1I feel like i have made a mistake :/

saifoo.khan
 one year ago
Best ResponseYou've already chosen the best response.2x = 4.41, y = 15.99 x = 15.99, y = 4.41

hba
 one year ago
Best ResponseYou've already chosen the best response.1Lemme do it again,Stop playing with wolf :/

mathslover
 one year ago
Best ResponseYou've already chosen the best response.0ok do post your answer here

mathslover
 one year ago
Best ResponseYou've already chosen the best response.0if you're completed with your soln

hba
 one year ago
Best ResponseYou've already chosen the best response.1Okay x=15.98,4.414 and y=4.414,15.98

hba
 one year ago
Best ResponseYou've already chosen the best response.1Now next question, I am getting b=2,b=8 and a=8,a=2

hba
 one year ago
Best ResponseYou've already chosen the best response.1So harmonic mean is 16/5=3.2

saifoo.khan
 one year ago
Best ResponseYou've already chosen the best response.2Never heard of harmonic mean. :s

hba
 one year ago
Best ResponseYou've already chosen the best response.1Okay lets call someone else for that case,What about the observation do you think they are right? Btw,A.M is opposite of H.M.

hba
 one year ago
Best ResponseYou've already chosen the best response.1And, H.M=N/(1/a1+1/a2+......1/an)

hba
 one year ago
Best ResponseYou've already chosen the best response.1@mathslover Do you think my answers are correct?

mathslover
 one year ago
Best ResponseYou've already chosen the best response.0lemme check tht .. wait

hba
 one year ago
Best ResponseYou've already chosen the best response.1Thanks but now i want to ask, As i have two diff observations a=8,b=2 and a=2,b=8 and the HM is same so should i show this two times?

mathslover
 one year ago
Best ResponseYou've already chosen the best response.0yes you have to mention that it will be same in both cases

hba
 one year ago
Best ResponseYou've already chosen the best response.1Chalo okay namaz kai baad krtai hai.

hba
 one year ago
Best ResponseYou've already chosen the best response.1Han continue karlain @saifoo.khan

AravindG
 one year ago
Best ResponseYou've already chosen the best response.0sorry I am a really busy ...

hba
 one year ago
Best ResponseYou've already chosen the best response.1@saifoo.khan I am waiting :/

hba
 one year ago
Best ResponseYou've already chosen the best response.1@hartnn Help pleaseeeeeeeeeeeeee

hba
 one year ago
Best ResponseYou've already chosen the best response.1@hartnn See the last attachment

hartnn
 one year ago
Best ResponseYou've already chosen the best response.0same weighted average formula.

hartnn
 one year ago
Best ResponseYou've already chosen the best response.0(700*8.5+800*7.5+500*8)/2000

hartnn
 one year ago
Best ResponseYou've already chosen the best response.0\(\sum_{}^{}fx/\sum_{}^{}f\)

hba
 one year ago
Best ResponseYou've already chosen the best response.1I was thinking about using this but i am not getting why is sum of f=2000

hba
 one year ago
Best ResponseYou've already chosen the best response.1I am getting mean=7.85,Am i right? @mathslover

hba
 one year ago
Best ResponseYou've already chosen the best response.1Close enough lol :P I am using a casio scientific calculator,I dont know why it rounded the answers :/

hba
 one year ago
Best ResponseYou've already chosen the best response.1Oh yeah i checked it again,Its 7.95 thanks. I have another question may i ask? @hartnn

hba
 one year ago
Best ResponseYou've already chosen the best response.1Wait wait dont answer i am trying

hba
 one year ago
Best ResponseYou've already chosen the best response.1\[\sum_{i=1}^{n}a_i=16.2\] Okay @hartnn Please explain
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