Question 74734
{{{V = 1/3Bh}}}
{{{112 = 1/3B(7)}}}Plug in V=112 and h=7
{{{112/(1/3)=B(7)}}}Divide both sides by {{{1/3}}}. When you divide a fraction, you multiply its reciprocal. In other words, if I have {{{2/(1/2)}}} I flip the {{{1/2}}} and I multiply it by 2 {{{2/(1/2)=2(2/1)=4}}}
{{{112*(3/1)=B(7)}}}
{{{336=B(7)}}}Divide both sides by 7
{{{336/7=B}}}
{{{B=48}}}
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Check:
{{{112 = 1/3(48)(7)}}}
{{{112 = 16(7)}}}
{{{112 = 112}}}works