Fiona's salary is 80% less than Joelle's salary. When their salaries are decreased by 20%, their combined salaries will be $1392. How much was Joelle's salary before the decrease?
| |
Fiona |
Joelle |
Total |
| Before |
1 u |
5 u |
6 u |
| Change |
- ? |
- ? |
- 1.2 u |
| After |
? |
? |
4.8 u
$1392 |
100% - 80% = 20%
FionaJoelle =
20100 =
15 Combined salaries at first
= 1 u + 5 u
= 6 u
Decrease in the combined salaries
= 20% x 6 u
=
20100 x 6 u
= 1.2 u
Combined salaries in the end
= 6 u + 1.2 u
= 4.8 u
4.8 u = 1392
1 u = 1392 ÷ 4.8 = 290
Joelle's salary before the decrease
= 5 u
= 5 x 290
= $1450
Answer: $1450
