Linda's salary to Kimberly's salary is 3 : 7. If Linda spends
57 of her salary, Kimberly will have $4300 more than her. How much salary does Linda have?
| |
Linda |
Kimberly |
Comparing Linda
and Kimberly at first |
3x7 =
21 u |
7x7 =
49 u |
Before |
7x3 =
21 u |
|
Change |
- 5x3 =
- 15 u |
|
After |
2x3 =
6 u |
49 u |
Comparing Linda
and Kimberly in the end |
|
$4300 more |
Linda's salary at first is repeated. Make Linda's salary at first the same. LCM of 3 and 7 is 21.
Amount that Kimberly will have more than Linda in the end
= 49 u - 6 u
= 43 u
43 u = 4300
1 u = 4300 ÷ 43 = 100
Linda's salary
= 21 u
= 21 x 100
= $2100
Answer(s): $2100
