<PRE><B>Question 1012665</B>
Set-up the system, and the rest is to solve the system.


x, y, z, how many of each coint 5c, 10c, 20c.


{{{system(x+y+z=14,y=2x,0.05x+0.1y+0.20z=1.75)}}}


Simplify the money count equation.
{{{x+2y+4z=35}}}
and substitute for y in this and the coin count equation.


{{{system(x+2x+z=14,x+2*2x+4z=35)}}}


{{{system(3x+z=14,5x+4z=35)}}}----can you do the rest?</PRE>