Ivory's salary is 40% more than Hazel's salary. When their salaries are decreased by 70%, their combined salaries will be $1584. How much was Ivory's salary before the decrease?
| |
Ivory |
Hazel |
Total |
| Before |
7 u |
5 u |
12 u |
| Change |
- ? |
- ? |
- 8.4 u |
| After |
? |
? |
3.6 u
$1584 |
100% + 40% = 140%
IvoryHazel =
140100 =
75 Combined salaries at first
= 7 u + 5 u
= 12 u
Decrease in the combined salaries
= 70% x 12 u
=
70100 x 12 u
= 8.4 u
Combined salaries in the end
= 12 u + 8.4 u
= 3.6 u
3.6 u = 1584
1 u = 1584 ÷ 3.6 = 440
Ivory's salary before the decrease
= 7 u
= 7 x 440
= $3080
Answer: $3080
