Problema Solution
In a park, the ratio of adults to children is 8 to 5. If there are 143 people in the park, how many children are there?
Answer provided by our tutors
let
a = the number of adults in the park
c = the number of children in the park
the ratio of adults to children is 8 to 5:
a : c = 8 : 5 (cross-multiply)
5a = 8c
there are 143 people in the park:
a + c = 143
by solving the system of equations:
5a = 8c
a + c = 143
we find:
a = 88 adults
c = 55 children
click here to see the step by step solution of the system of equations:
there are 88 adults and 55 children in the park.