Question 937076
d, dimes
n, nickels
p, pennies


Transcribe the descriptions into algebraic statements.
{{{highlight_green(system(d/n=6,p=2+d,0.1d+0.05n+0.01p=2.15))}}}


That is help to get you started.  Three equations, LINEAR equations, in three unknown variables.
The ratio equation can be converted into a linear form.   {{{d=6n}}}.