
Nathan B. answered 05/07/15
Tutor
5
(20)
Elementary and Algebraic skilled
Here's what we know:
a + b + c = 35000
b = c + 5000
a = 2c
Now that we have values for them, let's put them into the equation:
2c + c + 5000 + c = 35000
4c + 5000 = 35000
4c = 30000
c = 7500
Now that we have the youngest, we can solve for the others:
b = 7500 + 5000
b = 12500
a = 7500 * 2
a = 15000
Check:
15000 + 12500 + 7500 = 35000
15000 + 20000 = 35000
35000 = 35000