Sarah's salary is 60% less than Kimberly's salary. When their salaries are increased by 80%, their combined salaries will be $4410. How much was Kimberly's salary before the increase?
| |
Sarah |
Kimberly |
Total |
| Before |
2 u |
5 u |
7 u |
| Change |
+ ? |
+ ? |
+ 5.6 u |
| After |
? |
? |
12.6 u
$$(n11040 |
100% - 60% = 40%
SarahKimberly =
40100 =
25 Combined salaries at first
= 2 u + 5 u
= 7 u
Increase in the combined salaries
= 80% x 7 u
=
80100 x 7 u
= 5.6 u
Combined salaries in the end
= 7 u + 5.6 u
= 12.6 u
12.6 u = 4410
1 u = 4410 ÷ 12.6 = 350
Kimberly's salary before the increase
= 5 u
= 5 x 350
= $1750
Answer: $1750
