Question

Adult tickets for a charity concert were $5 each. Students were admitted for $2 each. The charity concert

sold 700 tickets and made $3050. How many students attended the lecture?

Answer 1

students 150

adult 550

Explanation:

x + y = 700

5x + 2y = 3050

x = 700 - y

5(700 - y) + 2y = 3050

3500 - 5y + 2y = 3050

-3y + 3500 = 3050

-3y = 3050 - 3500

-3y = -450

y = -450 / -3

y = 150

x = 700 - y

x = 700 - 150

x = 550