Question 977470
In other words, when does {{{V(t)=0}}}?
{{{V[1]=-15t+45=0}}}
{{{15t=45}}}
{{{t[1]=3}}}{{{min}}}
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{{{V[2]=-20t+50=0}}}
{{{20t=50}}}
{{{t[2]=5/2}}}{{{min}}}
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The second tub drains faster.
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The first tub is half full when the volume is half of the volume at t=0.
{{{V[0]/2=(-15(0)+45)/2=45/2}}}
{{{-15t+45=45/2}}}
{{{-15t=-45/2}}}
{{{t=3/2}}}{{{min}}}