Rachel's salary to Gabby's salary is 3 : 7. If Rachel spends
56 of her salary, Gabby will have $1040 more than her. How much salary does Rachel have?
| |
Rachel |
Gabby |
Comparing Rachel
and Gabby at first |
3x2 =
6 u |
7x2 =
14 u |
Before |
6x1 =
6 u |
|
Change |
- 5x1 =
- 5 u |
|
After |
1x1 =
1 u |
14 u |
Comparing Rachel
and Gabby in the end |
|
$1040 more |
Rachel's salary at first is repeated. Make Rachel's salary at first the same. LCM of 3 and 6 is 6.
Amount that Gabby will have more than Rachel in the end
= 14 u - 1 u
= 13 u
13 u = 1040
1 u = 1040 ÷ 13 = 80
Rachel's salary
= 6 u
= 6 x 80
= $480
Answer(s): $480
