Joelle's salary is 20% more than Sarah's salary. When their salaries are increased by 60%, their combined salaries will be $4400. How much was Joelle's salary before the increase?
| |
Joelle |
Sarah |
Total |
| Before |
6 u |
5 u |
11 u |
| Change |
+ ? |
+ ? |
+ 6.6 u |
| After |
? |
? |
17.6 u
$4400 |
100% + 20% = 120%
JoelleSarah =
120100 =
65 Combined salaries at first
= 6 u + 5 u
= 11 u
Increase in the combined salaries
= 60% x 11 u
=
60100 x 11 u
= 6.6 u
Combined salaries in the end
= 11 u + 6.6 u
= 17.6 u
17.6 u = 4400
1 u = 4400 ÷ 17.6 = 250
Joelle's salary before the increase
= 6 u
= 6 x 250
= $1500
Answer: $1500
