Question 170809
lets call the # of quarters and dimes , q and d respectively.
:
.25q+.1d=11.45....eq 1
:
q=2d+5............eq 2
:
take q's value from eq 2 and plug it in eq 1
:
.25(2d+5)+.1d=11.45
:
.5d+1.25+.1d=11.45
:
.6d=10.20
:
{{{highlight(d=17)}}}dimes
{{{highlight(q=2(17)+5=39)}}}quarters