kmullis6
  • kmullis6
HELP! I'll fan and give a medal
Mathematics
jamiebookeater
  • jamiebookeater
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
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misty1212
  • misty1212
HI!!
misty1212
  • misty1212
this is like the tenth time i have seen this question, maybe i should make a template for it
misty1212
  • misty1212
first off it says "Write an equation in one variable " and your equation has two , so lets start again

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kmullis6
  • kmullis6
Ok, other than that, am I on the right track?
misty1212
  • misty1212
secondly it has "find the total number of liters of apple juice and water in the jar. " which is stupid because you know the number of liters of water right?
kmullis6
  • kmullis6
Yea, 1 right? And there's 3 of juice?
misty1212
  • misty1212
yeah so it is easy enough to solve in your head one liter of water, 3 liters of juice makes 75% juice but i guess you still have to come up with an equation that they like
misty1212
  • misty1212
lets see if we can do that, even though it is not necessary to write an equation to solve this rather simple question
misty1212
  • misty1212
we can call the number of liters of juice \(j\) if you like, since that is what you have to find
misty1212
  • misty1212
that means \[j+1\] is the total amount right?
kmullis6
  • kmullis6
Yea
misty1212
  • misty1212
and since it has to be \(75\%\) juice we also know \(j\) must equal it must be \(.75(J+1)\)
misty1212
  • misty1212
set \[j=.75(j+1)\] and solve for \(j\)
kmullis6
  • kmullis6
3
misty1212
  • misty1212
you will get \(j=3\) when you solve that, just like you knew at the beginning without resorting to this rather silly equation
misty1212
  • misty1212
yeah you got it
kmullis6
  • kmullis6
Oh ok. So that's the equation?
misty1212
  • misty1212
that is one you can use, yes and it does only have one variable
kmullis6
  • kmullis6
j=.75(j+1)=3
misty1212
  • misty1212
oh no, not = 3
misty1212
  • misty1212
solve \[j=0.75(j+1)\] and you will get \(j=3\) as the solution
kmullis6
  • kmullis6
Ohh ok. Makes sense.
misty1212
  • misty1212
good!
kmullis6
  • kmullis6
And just to make sure this would be part B? j = .75(j + 1) j = .75j + .75 j - .75j =.75 0.25j = .75 j = 3
kmullis6
  • kmullis6
anonymous
  • anonymous
yes
kmullis6
  • kmullis6
Thank you! @satellite73
anonymous
  • anonymous
yw

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