Hazel's salary is 70% less than Hilda's salary. When their salaries are increased by 10%, their combined salaries will be $6435. How much was Hilda's salary before the increase?
| |
Hazel |
Hilda |
Total |
| Before |
3 u |
10 u |
13 u |
| Change |
+ ? |
+ ? |
+ 1.3 u |
| After |
? |
? |
14.3 u
$$(n11040 |
100% - 70% = 30%
HazelHilda =
30100 =
310 Combined salaries at first
= 3 u + 10 u
= 13 u
Increase in the combined salaries
= 10% x 13 u
=
10100 x 13 u
= 1.3 u
Combined salaries in the end
= 13 u + 1.3 u
= 14.3 u
14.3 u = 6435
1 u = 6435 ÷ 14.3 = 450
Hilda's salary before the increase
= 10 u
= 10 x 450
= $4500
Answer: $4500
