dmdalton071 dmdalton071
  • 23-04-2022
  • Mathematics
contestada

please teach me how to do this

please teach me how to do this class=

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jdoe0001 jdoe0001
  • 23-04-2022

Check the picture below.

[tex]\cfrac{18}{18+x}~~ = ~~\cfrac{19.2}{38.4}\implies \cfrac{18}{18+x}~~ = ~~\cfrac{19.2}{2(19.2)}\implies \cfrac{18}{18+x}~~ = ~~\cfrac{1}{2} \\\\\\ 36=18+x\implies 18=x[/tex]

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