anonymous
  • anonymous
'Nother Q. Please Help. ;3
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
@cvblondie712 @Ell @FlaCaLOL @Forever_Me @Savannah_Noelle @TSwizzle @ParthKohli @imbreanna
Ell
  • Ell
Whats the question? (:
anonymous
  • anonymous
Question?

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anonymous
  • anonymous
Oh yea...-.- wow sorry
Ell
  • Ell
haha(: np
anonymous
  • anonymous
http://assets.openstudy.com/updates/attachments/51af3b89e4b05b167ed23c22-pyromancer-1370438863548-here.jpg Read question 25
ivettef365
  • ivettef365
Just cross multiply to find value of x
anonymous
  • anonymous
Okay.
anonymous
  • anonymous
5 7 ----=--- 2x-3 3x
anonymous
  • anonymous
then what?
anonymous
  • anonymous
@ivettef365
ivettef365
  • ivettef365
(5)(3x) = 7(2x-3)
ivettef365
  • ivettef365
can you take it from there?
anonymous
  • anonymous
Yes, probably.
ivettef365
  • ivettef365
What did you get?
anonymous
  • anonymous
15x=14x-21
ivettef365
  • ivettef365
good and now just subtract 14x on each side
anonymous
  • anonymous
ok
anonymous
  • anonymous
1x=-21
anonymous
  • anonymous
x=-21
anonymous
  • anonymous
ok now 27
anonymous
  • anonymous
Suppose y varies inversly with x. write an equation for the inverse vaiation.
anonymous
  • anonymous
y=7 when x=3
anonymous
  • anonymous
@hartnn
ivettef365
  • ivettef365
Use formula y=kx
anonymous
  • anonymous
ok
anonymous
  • anonymous
that is..?
anonymous
  • anonymous
hello?
ivettef365
  • ivettef365
Sorry that is the direct variation the inverse variation is y = k/x
ivettef365
  • ivettef365
which can also be read as yx= k
ivettef365
  • ivettef365
therefore you have (3)(7)=k
ivettef365
  • ivettef365
the inverse variation would be y = 21/k or you can write it as xy=21
anonymous
  • anonymous
I know I figured it out same with 29

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