Question 1063999
d, the dial setting
s, amount of area that one bag covers
k, proportionality constant


The setting varies inversely with the area it will cover.
{{{highlight_green(d=k/s)}}}



If d=10, then s=600.  First use this to find k.
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{{{d=k/s}}}
{{{k/s=d}}}
{{{k=s*d}}}
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{{{k=600*10}}}
{{{k=6000}}}
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Formula should be  {{{d=6000/s}}}


Equivalent to {{{sd=6000}}}
{{{highlight(s=6000/d)}}}


Now what is s if d is 6?