Risa's salary is 30% more than Wendy's salary. When their salaries are decreased by 20%, their combined salaries will be $7912. How much was Risa's salary before the decrease?
| |
Risa |
Wendy |
Total |
| Before |
13 u |
10 u |
23 u |
| Change |
- ? |
- ? |
- 4.6 u |
| After |
? |
? |
18.4 u
$7912 |
100% + 30% = 130%
RisaWendy =
130100 =
1310 Combined salaries at first
= 13 u + 10 u
= 23 u
Decrease in the combined salaries
= 20% x 23 u
=
20100 x 23 u
= 4.6 u
Combined salaries in the end
= 23 u + 4.6 u
= 18.4 u
18.4 u = 7912
1 u = 7912 ÷ 18.4 = 430
Risa's salary before the decrease
= 13 u
= 13 x 430
= $5590
Answer: $5590
