Problema Solution
The Jurassic Zoo charges $14 for each adult and $4 for each child. The total bill for the 284 people from a school trip was $2026. How many adults and how many children went to the zoo?
Answer provided by our tutors
a = number of adults
c = number of children
14a + 4c = 2026
a + c = 284
=> a = 284 - c
=> 14(284 - c) + 4c = 2026
3976 - 14c + 4c = 2026
3976 - 10c = 2026
-10c = -1950
c = 195
a + (195) = 284
a = 89
195 children and 89 adults went to the zoo.