Question 988559
{{{8*gallons=(2/3-2/5)*V*gallons}}}, using V for the volume of the water's container.


{{{(2/3-2/5)V=8}}}
{{{(10/15-6/15)V=8}}}
{{{(4/15)V=8}}}
{{{V=8(15/4)}}}
V=30