Question 428938
{{{a}}} = number of members
{{{b}}} = number of non-members
given:
(1) {{{a + b = 353}}}
(2) {{{275a + 650b = 176200}}} (in cents)
Multiply both sides of (1) by {{{275}}}
and subtract (1) from (2)
(2) {{{275a + 650b = 176200}}}
(1) {{{-275a - 275b = 97075}}}
{{{ 375b = 79125 }}}
{{{ b = 211}}}
and
(1) {{{a + 211 = 353}}}
{{{a = 142 }}}
142 members and 211 non-members came