Natalie's salary is 70% less than Tina's salary. When their salaries are increased by 80%, their combined salaries will be $10062. How much was Tina's salary before the increase?
| |
Natalie |
Tina |
Total |
| Before |
3 u |
10 u |
13 u |
| Change |
+ ? |
+ ? |
+ 10.4 u |
| After |
? |
? |
23.4 u
$$(n11040 |
100% - 70% = 30%
NatalieTina =
30100 =
310 Combined salaries at first
= 3 u + 10 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 = 10062
1 u = 10062 ÷ 23.4 = 430
Tina's salary before the increase
= 10 u
= 10 x 430
= $4300
Answer: $4300
