A problem that is similar to the examples talked about are St Marks Community babraque served 250 dinners. A childs plate cost $3.50 and an adults plate cost $7.00. A total of $1347.50 was collected . How many of each plate was served?

Answer 1

x = number of child's plates
y = number of adult

x + y = 250
3.50x + 7.00y = 1347.50

solve these two equations together and solve for x and y

Answer 2

2.50