At a trampoline park, an adult ticket cost $7 and a child ticket cost $1. Last Saturday, the trampoline park sold 69 more adult tickets than child tickets. A total of $715 was collected. How many child tickets were sold?
| |
Adults |
Children |
Total |
| Number |
1 u + 69 |
1 u |
2 u |
| Value |
$7 |
$1 |
|
| Total value |
7 u + 483 |
1 u |
8 u + 483 |
Cost of 1 child ticket = $1
Cost of 1 adult ticket = $7
Number of children = 1 u
Number of adults = 1 u + 69
Total cost of child tickets = 1 u x 1 = 1 u
Total cost of adult tickets = 7(1 u + 69) = 7 u + 483
Total cost of all the tickets
= 1 u + 7 u + 483
= 8 u + 483
8 u + 483 = 715
8 u = 715 - 483
8 u = 232
1 u = 232 ÷ 8 = 29
Number of child tickets = 29
Answer(s): 29
