Problema Solution
A group of 3 children and 2 aduls pay a total of $120 to take a karate class. A group of 5 children and 1 adult take the same class for $95. What is the total cost for 1 child and 1 adult to take the karate class?
Answer provided by our tutors
let
a = the cost for 1 adult
c = the cost for a child
A group of 3 children and 2 adults pay a total of $120 to take a karate class
3c + 2a = 120
A group of 5 children and 1 adult take the same class for $95
5c + a = 95
by solving the system of equations
3c + 2a = 120
5c + a = 95
we find
a = $45
c = $10
click here to see the step by step solution of the system of equations
the cost for 1 child is $10.
the cost for 1 adult is $45.