Jen's salary is 60% more than Risa's salary. When their salaries are increased by 80%, their combined salaries will be $10764. How much was Jen's salary before the increase?
| |
Jen |
Risa |
Total |
| Before |
8 u |
5 u |
13 u |
| Change |
+ ? |
+ ? |
+ 10.4 u |
| After |
? |
? |
23.4 u
$10764 |
100% + 60% = 160%
JenRisa =
160100 =
85 Combined salaries at first
= 8 u + 5 u
= 13 u
Increase in the combined salaries
= 80% x 13 u
=
80100 x 13 u
= 10.4 u
Combined salaries in the end
= 13 u + 10.4 u
= 23.4 u
23.4 u = 10764
1 u = 10764 ÷ 23.4 = 460
Jen's salary before the increase
= 8 u
= 8 x 460
= $3680
Answer: $3680
