Question 1006377
x, how many pressure-wash
y, how many mows
{{{y/x=4}}}


{{{system(50x+20y=2600,y=4x)}}}


{{{system(5x+2y=260,y=4x)}}}


{{{5x+2*4x=260}}}


{{{13x=260}}}


{{{highlight(x=20)}}}
{{{highlight(y=80)}}}