Question 110763
{{{13a + 10c = 277}}}
{{{a + c = 22}}}
{{{c = 22 - a}}}
{{{13a + 10(22 - a) = 277}}}
{{{13a + 220 - 10a = 277}}}
{{{3a = 57}}}
{{{a = 19}}}
{{{c = 22 - a}}}
{{{c = 3}}}
19 adults and 3 children attended the play