Question 1155353
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 r varies directly as the square of​ m, and inversely as s. If r equals 19 when m equals 15 and s equals 9​, find r when m equals 60 and s equals 9.
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{{{highlight_green(r=km^2/s)}}}


{{{rs/m^2=k}}}


{{{k=rs/m^2}}}


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{{{k=19*9/15^2}}}

{{{k=171/225}}}

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{{{r=(171/225)(60^2)/9}}}------------{{{evaluate}}}.