Question

6.

April sold 85 tickets to a school play
and collected a total of $495. If adult tickets cost $10 each and child
tickets cost $5 each, how many adult tickets and how many child tickets did she sell?

Answer 1

adult tickets =14

child tickets =71

Explanation:

x is adult tickets

y is child tickets

x+y=85

10x+5y=495

y=85-x

2x+y=99

2x+（85-x）=99

x=99-85=14

y=85-x=85-14=71