anonymous
  • anonymous
I'm four times older than my sister was when she was half as young as i was. In 15 years our combined age will 100. How old are we now ?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
Still confusing to make equations ....
ganeshie8
  • ganeshie8
Now you're 40 and your sister is 30
uri
  • uri
thx for the ansur

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More answers

Miracrown
  • Miracrown
@ganeshie8 WHY DID YOU GIVE THE ANSWER XD
uri
  • uri
ban him ^ i dare u
Miracrown
  • Miracrown
you forgot the rules I think, ganesh
uri
  • uri
screen shotted!
Miracrown
  • Miracrown
#badmod
ganeshie8
  • ganeshie8
you're manipulating a mod to ban another mod
Miracrown
  • Miracrown
LOL
ganeshie8
  • ganeshie8
i believe the trick part is the solution, not the answer
Miracrown
  • Miracrown
tanjung went offline :(
uri
  • uri
ban ganeishie, or get linchpin acc back
ganeshie8
  • ganeshie8
See, the OP knows his age and his sister's age pretty well, so I didn't give any new information to OP okay ?
uri
  • uri
they don't know. *How old are we now ?* is the question @ganeshie8
Miracrown
  • Miracrown
What if he didn't? Who knows
Miracrown
  • Miracrown
@uri has a point
ganeshie8
  • ganeshie8
sure everybody has a point or two
Miracrown
  • Miracrown
@ganeshie8 has a point
uri
  • uri
if ganeshie isn't banned, i'm gonna go on hunger- strike and make everyone leave OS. this isn't justice or equality.
Miracrown
  • Miracrown
uri: 1 ganeshie: 1 mira: 1 everyone else: 1
ganeshie8
  • ganeshie8
lol
Miracrown
  • Miracrown
now everyone has a point xD
uri
  • uri
ganeishie ban yourself
ganeshie8
  • ganeshie8
Okay to make you happy, I'm banning myself tonight during my sleep time
Miracrown
  • Miracrown
Hahahaha
Miracrown
  • Miracrown
I doubt if you even sleep @ganeshie8
Miracrown
  • Miracrown
I love your lang btw
Miracrown
  • Miracrown
aslam mu lakum
uri
  • uri
asalam walekum* it's not *my language* it's *urdu*
ganeshie8
  • ganeshie8
asalam walekum is arab i think
uri
  • uri
arabic* but im talking about the thing she said *i like your lang btw*
Miracrown
  • Miracrown
i think its a term which every other ''muslim'' uses
uri
  • uri
use* yes
uri
  • uri
its used in both urdu and arabic
imqwerty
  • imqwerty
:)
uri
  • uri
ban ganeshie, justkidding let him stay here, i mean hes 32 and has no life outside OS and if he thinks OS is his life then let it be here! gives hope for myself since i thought i was old and being OS or internet addict, but hey im 18 and hes 32.... still have time
sohailiftikhar
  • sohailiftikhar
he said he is now older than that age of his sister when she was half young as he was let his age was x and his sisters age was x/2 now he is 4 times that age of his sister means \[4*x/2\]
ganeshie8
  • ganeshie8
Nice, lets see if our answers match
imqwerty
  • imqwerty
^new QH
sohailiftikhar
  • sohailiftikhar
and in 15 years their combined age will be equal to 100
sohailiftikhar
  • sohailiftikhar
he is asking the present age he tells us past and future ages
sohailiftikhar
  • sohailiftikhar
told us *
sohailiftikhar
  • sohailiftikhar
ganesh ?
sohailiftikhar
  • sohailiftikhar
am I right ?
ganeshie8
  • ganeshie8
looks okay but i think we should get a system of 3 equations
sohailiftikhar
  • sohailiftikhar
yes ! that is
sohailiftikhar
  • sohailiftikhar
past, present and future
sohailiftikhar
  • sohailiftikhar
so let their age is x and x/2 in 1 year
Loser66
  • Loser66
Why 3 equations? The question is "how old are WE now?". Is it not that now, We are 70 years-old? It doesn't ask how old am I and how old is my sister now. Am I right or am I crazy??
sohailiftikhar
  • sohailiftikhar
and he is 4 times older than the past age of his sister. then his age and his sister's age will be 4*x/2 and x
anonymous
  • anonymous
Sorry guys my english so bad :(
ganeshie8
  • ganeshie8
To me, "We are 70 years old" sounds more like each of them is 70 years
Loser66
  • Loser66
ok. :)
sohailiftikhar
  • sohailiftikhar
it's ok tangun
ganeshie8
  • ganeshie8
the question is fine @tanjung i think it as as good as it can be gramatically/mathematically..
Miracrown
  • Miracrown
\(\color{blue}{\text{Originally Posted by}}\) @tanjung Sorry guys my english so bad :( \(\color{blue}{\text{End of Quote}}\) is ok me english no so good to we here on os is family we r one but we are many nd we share the same land nd we sing our song
sohailiftikhar
  • sohailiftikhar
is there any option @tanjung ?
sohailiftikhar
  • sohailiftikhar
lol yea! sing our songs :d
anonymous
  • anonymous
It is an essay question. I mean sometimes i will confuse to make an equation or more to applying algebra expression in text question
ganeshie8
  • ganeshie8
Start by labeling the variables, Say, the present age of you is \(m\) and your sister's is \(s\)
anonymous
  • anonymous
you've gotta be kidding me, you all speak persion these days!! what is this: ajeeb har cheez ma
Miracrown
  • Miracrown
I am the only odd one out, I speak Irish and English only.
ganeshie8
  • ganeshie8
persian/hindi/urdu/arabic languages are similar i think i can understand urdu/arabic because i speak hindi
anonymous
  • anonymous
Thanks for clearing that up
Miracrown
  • Miracrown
I love coming on OS cause I get to meet all you sweet people from around the globe :D
sohailiftikhar
  • sohailiftikhar
thanks
Miracrown
  • Miracrown
Bless the day I joined OS.
anonymous
  • anonymous
XD @tanjung Now I think you should know how old are we now.
sohailiftikhar
  • sohailiftikhar
all I understand that that if the past ages of boy and his sister consider x and x/2 respectively then their present age is 3x
sohailiftikhar
  • sohailiftikhar
so let make equations past ages let at 1 year their ages were x+x/2=3x/2 now after one more year it will be x+1+x+1/2=3x+2/2 and after 15 year their ages are x+15+x+15/2=100 does it make sense?
sohailiftikhar
  • sohailiftikhar
u here ?
anonymous
  • anonymous
Yup... thank you @sohailiftikhar. I just trying to understand what you mean
sohailiftikhar
  • sohailiftikhar
lol I'm confused with the given data ..
sohailiftikhar
  • sohailiftikhar
I tried every way but can't get it's explanation sorry ,
sohailiftikhar
  • sohailiftikhar
please don't blow up my notifications thx

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