240 people attended a concert.tickets for adults were R60 and for children R40. The concert raied R12800. How many adults and how many children attended???

2 answers

A = 240 - C

60A + 40C = 12,800

Substitute 240-C for A in the second equation and solve for C. Insert that value into the first equation to solve for A. Check by putting both values into the second equation.
200 and 140