Problema Solution
andie is four years odler than micah. last year, the sum of their ages was 28. how old are they now?
Answer provided by our tutors
Let
x = the present age of Andie
y = the present age of Micah
Andie is 4 years odler than Micah:
x = y + 4
The sum of their ages last year was 28:
(x - 1) + (y - 1) = 28
We have the following system of equations:
x = y + 4
(x - 1) + (y - 1) = 28
........
click here to see the system of equations solved for x and y
........
x = 17 years
y = 13 years
Andie is 17 years old now.
Micah is 13 years old now.