Question 944312
{{{2000=(1000(1+3t))/(5+t)}}}
{{{2(5+t)=1+3t}}}
{{{10+2t=1+3t}}}
{{{t=9}}}
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{{{drawing(300,300,-1,12,-2000,3000,grid(1),blue(line(0,2000,20,2000),circle(9,2000,0.25),graph(300,300,-1,12,-2000,3000,(1000(1+3x))/(5+x))))}}}