anonymous
  • anonymous
x varies directly with y and z. x = 1200 when y = 20 and z = 30. Find x when y = 10 and z = 20.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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Luigi0210
  • Luigi0210
\[\Huge{\color{purple}{\textbf{W}} \color{orange}{\cal{E}} \color{green}{\mathbb{L}} \color{blue}{\mathsf{C}} \color{maroon}{\rm{O}} \color{red}{\tt{M}} \color{gold}{\tt{E}} \space \color{orchid}{\mathbf{T}} \color{Navy}{\mathsf{O}} \space \color{OrangeRed}{\boldsymbol{O}} \color{Olive}{\mathbf{P}} \color{Lime}{\textbf{E}} \color{DarkOrchid}{\mathsf{N}} \color{Tan}{\mathtt{S}} \color{magenta}{\mathbb{T}} \color{goldenrod}{\mathsf{U}} \color{ForestGreen}{\textbf{D}} \color{Salmon}{\mathsf{Y}} \ddot \smile } \]
anonymous
  • anonymous
can you help me out
Luigi0210
  • Luigi0210
If I'm not mistaken, the equation for this is: x=kyz

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anonymous
  • anonymous
yes ur correct
Luigi0210
  • Luigi0210
Okay, so plug in the first set of values
anonymous
  • anonymous
how is the so is it 1200=k(20)(30)
Luigi0210
  • Luigi0210
Now solve for k
anonymous
  • anonymous
is 20
Luigi0210
  • Luigi0210
20 or 2?
anonymous
  • anonymous
2
Luigi0210
  • Luigi0210
Good, now that you have k, plug in the second set of values and you are done good sir :)
anonymous
  • anonymous
x=2(10)(20)
Luigi0210
  • Luigi0210
Yup!
anonymous
  • anonymous
400
Luigi0210
  • Luigi0210
Congrats, you have found your answer.
Luigi0210
  • Luigi0210
And yes, it is that easy :)

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