the ratio if john's money to Fred's money is 8:3.If john gives fred $6,john will have twice as much money as fred.How much money does john have before he gives fred money?
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
terenzreignz (terenzreignz):
This is kind of tricky, you know.
OpenStudy (anonymous):
not for that smart brain of yours
terenzreignz (terenzreignz):
My brain isn't smart. *I* am. ;)
HAHA
Kidding ^^
What's tricky is explaining it to you. Let me think of a way...
OpenStudy (anonymous):
lol your funny
OpenStudy (anonymous):
i need to hurry cause my mom is rushing me
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
terenzreignz (terenzreignz):
This isn't something that we can solve in a hurry :>
Maybe you should rest now? :D
OpenStudy (anonymous):
i cant cause im really busy and this is due tomorrow morning
OpenStudy (anonymous):
isnt there something we can work out
OpenStudy (anonymous):
can we finish this at 3:30
terenzreignz (terenzreignz):
Well then, your mom's going to have to wait
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
lol yeah
OpenStudy (anonymous):
ok lets start
terenzreignz (terenzreignz):
Okay. I'll try and make this quick. But this is not how it should be done, okay? haha
OpenStudy (anonymous):
okay
terenzreignz (terenzreignz):
Suffice it to say, Fred only has 3/8 of John's money.
We're looking for how much John originally had.
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
yes
terenzreignz (terenzreignz):
So. John's original amount is x
Fred's is 3/8 x
OpenStudy (anonymous):
yes
terenzreignz (terenzreignz):
Now if John gives Fred 6, his amount will become
x - 6
because he loses 6, right?
What happens to Fred's money?
OpenStudy (anonymous):
he will gain 6
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
terenzreignz (terenzreignz):
so his amount becomes...?
OpenStudy (anonymous):
9
terenzreignz (terenzreignz):
no. Where did you get that? haha
His amount was originally 3/8 x
so you just add 6 to that
OpenStudy (anonymous):
6 3/8
terenzreignz (terenzreignz):
\[\Large \frac38x + 6\]
more like :P
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
terenzreignz (terenzreignz):
So John's new amount is x - 6
and that thing up there ^
is Fred's new amount
Apparently, with these new amounts, John has twice Fred's money.
So, in equations, that'd be
\[\Large x - 6 = 2\left[\frac38x + 6\right]\]
terenzreignz (terenzreignz):
Now solve for x as you did last time
OpenStudy (anonymous):
thats really confusing like last time lol
terenzreignz (terenzreignz):
It's just the fraction.
But actually, you just distribute the 2 to the two terms inside the []
much like you did with the 6 earlier.
OpenStudy (anonymous):
x-6=6/8+12
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
is that correct
terenzreignz (terenzreignz):
It is.
You can multiply everything by 8 to get rid of that denominator.
terenzreignz (terenzreignz):
And again, you missed a spot.
x's don't just disappear XD
terenzreignz (terenzreignz):
\[\Large x - 6 = 2\left[\frac38\color{red}x + 6\right]\]
OpenStudy (anonymous):
i still don't get it can you just tell me what x is
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
please friend
OpenStudy (anonymous):
friends are suppose to help friends
terenzreignz (terenzreignz):
I have a name, you know LOL
OpenStudy (anonymous):
please help me terence
OpenStudy (anonymous):
what is x suppose to be
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
terenzreignz (terenzreignz):
lol that's just an alias I've been using.
I'll multiply by 8, you do the rest.
You CAN do it, because you did it before lol
8x - 48 = 6x + 96
Now solve it.
OpenStudy (anonymous):
plus 48 to both sides
OpenStudy (anonymous):
???????????
terenzreignz (terenzreignz):
Yup.
You get...?
OpenStudy (anonymous):
or minus 96 to both sides
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
terenzreignz (terenzreignz):
Better to add 48 to both sides.
OpenStudy (anonymous):
8x=6x+144
OpenStudy (anonymous):
??
terenzreignz (terenzreignz):
good. Next?
OpenStudy (anonymous):
-6x to both sides
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
terenzreignz (terenzreignz):
Okay. And you get...?
OpenStudy (anonymous):
2x=144 which x equals 72 yes
OpenStudy (anonymous):
!!!!!!!!!!!!!!
terenzreignz (terenzreignz):
And that's the answer.
See? You CAN do it.
You don't need me to tell you the answer haha
OpenStudy (anonymous):
lol
Still Need Help?
Join the QuestionCove community and study together with friends!