Marion's salary to Joelle's salary is 7 : 8. If Marion spends
25 of her salary, she will have $380 less than Joelle. How much salary does Joelle have?
| |
Marion |
Joelle |
Comparing Marion
and Joelle at first |
7x5 =
35 u |
8x5 =
40 u |
Before |
5x7 =
35 u |
|
Change |
- 2x7 =
- 14 u |
|
After |
3x7 =
21 u |
40 u |
Comparing Marion
and Joelle in the end |
|
$380 less |
Marion's salary at first is repeated. Make Marion's salary at first the same. LCM of 7 and 5 is 35.
Amount that Marion will have less than Joelle in the end
= 40 u - 21 u
= 19 u
19 u = 380
1 u = 380 ÷ 19 = 20
Joelle's salary
= 40 u
= 40 x 20
= $800
Answer(s): $800
