Kimberly's salary is 80% more than Hilda's salary. When their salaries are increased by 70%, their combined salaries will be $7616. How much was Kimberly's salary before the increase?
| |
Kimberly |
Hilda |
Total |
| Before |
9 u |
5 u |
14 u |
| Change |
+ ? |
+ ? |
+ 9.8 u |
| After |
? |
? |
23.8 u
$7616 |
100% + 80% = 180%
KimberlyHilda =
180100 =
95 Combined salaries at first
= 9 u + 5 u
= 14 u
Increase in the combined salaries
= 70% x 14 u
=
70100 x 14 u
= 9.8 u
Combined salaries in the end
= 14 u + 9.8 u
= 23.8 u
23.8 u = 7616
1 u = 7616 ÷ 23.8 = 320
Kimberly's salary before the increase
= 9 u
= 9 x 320
= $2880
Answer: $2880
