Question 42768
c = number of children
a = number of adults
EQUATIONS:
{{{c + a = 600}}}
{{{c + 3a = 1100}}}
Combine:
{{{c + a = 600}}}
+
{{{-c - 3a = -1100}}}
=
{{{-2a = -500}}}
{{{a = 250}}}
PLUG:
{{{c + a = 600}}}
{{{c + 250 = 600}}}
{{{c = 350}}}