Problema Solution
It was recently estimated that females outnumber males by about three to two. If there are
1540
people in a county, how many of them are females?
Answer provided by our tutors
Let
x = the number of females
y = the number of males
x : y = 3 : 2
x = (3/2)y
Since there are 1540 in total we have:
x + y = 1540
We have the following system of equations:
x + y = 1540
x = (3/2)y
........
click here to see the system of equations solved for x and y
........
x = 924 females
y = 616 males
There are 924 females.