Problema Solution

Winona and Larry each had a birthday party at water world. The cost of admission was $137.50 for 13 children and 2 adults at W's party. $103.50 for 9 children and 2 adults for L's party. What is the cost of admission for an adult and a for a child

Answer provided by our tutors

for W's Party :- 

13X + 2Y = 137.5

and for L's Party :-

9X + 2Y = 103.5

 by solving these equations we got  X = 8.5 and Y = 13.5

so, the cost for old is 13.5 per person and 8.5 per child.