Question 1192669
<a href="https://www.algebra.com/my/Mixtures%3A-All-in-Symbols.lesson?content_action=show_dev">Lesson Mixing two concentrations for known amount of mixture, https://www.algebra.com/my/Mixtures%3A-All-in-Symbols.lesson?content_action=show_dev</a>


v of the 90%
20-v of the 10%

{{{90v+10(20-v)=51*20}}}


{{{90v+10*20-10v=51*20}}}

{{{90v-10v+10*20=51*20}}}

{{{(90-10)v=51*20-10*20}}}

{{{highlight_green(v=20(51-10)/(90-10))}}}

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