anonymous
  • anonymous
I need help, so that's why Im gonaa ask this question: You have two numbers, with a difference of 2. If you divide them however, you get 2.2(with a bar on top of the second 2). What are the two answers. Please give me like an equation, and then the answer, thank you soooo much whoever answers this. (No thank you to the people who saw this and turned their head :) )
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
wah, no one's helping.. : (
freckles
  • freckles
let's call the numbers a and b so a-b=? and a/b=?
anonymous
  • anonymous
a-b = 2 a/b= 2.22222222(repeating) or to make it more simple, a/b= 2 and two-ninths

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freckles
  • freckles
right so we have: \[a-b=2 \\ \frac{a}{b}=\frac{20}{9}\] You can solve the first equation for a by saying a=2+b now replace the a in the second equation with 2+b
freckles
  • freckles
\[\frac{2+b}{b}=\frac{20}{9}\] solve for b
anonymous
  • anonymous
hhmmm I must be stupid
freckles
  • freckles
why?
anonymous
  • anonymous
erm... lemme try that....|dw:1444595953765:dw| can't u say that the b/b is equal to 1 and say that 1+ wait no.....
freckles
  • freckles
you could multiply b and 9 on both sides some people like to call this technique cross-multiplication
freckles
  • freckles
9(2+b)=20b
anonymous
  • anonymous
!! so simple!! see, im just dummy *crying can be heard*
anonymous
  • anonymous
18 +9b = 20b 18 = 11b
anonymous
  • anonymous
b= 11/18
freckles
  • freckles
18/11 not 11/18
anonymous
  • anonymous
wait, but then if b=1 oh... so thats where I made my mistake
freckles
  • freckles
and we remember we had a=2+b so a=2+18/11
anonymous
  • anonymous
ooooohhhhhhhhhhhhhhhhhhhhhhmiiiiiiigoossssssshhhhhhhhhhhhhhhhhhhhhh okay thanks you are awesome just simply the best
freckles
  • freckles
np

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