anonymous
  • anonymous
How much pure antifreeze must be added to 12 L of a 40% solution to obtain a 60% solution. (Remember that pure antifreeze is 100% = 1.) What is the correct question to solve this problem?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
add 6 L
anonymous
  • anonymous
10.8/18
ash2326
  • ash2326
let the amount added be x litres 12 L of a 40 % solution has 4.8 litres of antifreeze (4.8+x)/ (12+x) *100=60 4.8+x=0.6(12+x) 4.8+x=7.2+0.6x 0.4x=2.4 x=6 litres

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More answers

anonymous
  • anonymous
6 litres
Hero
  • Hero
x + 12 = y x + .40(12) = .60y
Hero
  • Hero
Satellite, congratulations on getting 10,000 medals
anonymous
  • anonymous
\[.4\times 12+x=.6(12+x)\] solve for x thank you!!!
anonymous
  • anonymous
Wow, that's cool! 10000 medals!!!
anonymous
  • anonymous
kind of silly, huh?
Hero
  • Hero
Yup. You're officially the Godfather of OS
anonymous
  • anonymous
What's silly?
anonymous
  • anonymous
yeah, but haven't moved up a level since august
Hero
  • Hero
lol
anonymous
  • anonymous
You can't right?
anonymous
  • anonymous
really. i think it is impossible. no matter though.
anonymous
  • anonymous
For users who are below lvl 100, the bar on the right corner shows how far you are from the next lvl. What does it look like when you're lvl 100? Can you post the picture satellite, just curious.....
anonymous
  • anonymous
satellite do you work here? How long has it taken you to get so many medals?!
anonymous
  • anonymous
He's not a mod....
Hero
  • Hero
Satellite was here before OS was OS as we know it.
anonymous
  • anonymous
Satellite, can you post the pic please....
Hero
  • Hero
Where's muffin?
anonymous
  • anonymous
What muffin?

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