Xylia's salary to Joelle's salary is 2 : 7. If Xylia spends
47 of her salary, Joelle will have $1290 more than her. How much salary does Xylia have?
| |
Xylia |
Joelle |
Comparing Xylia
and Joelle at first |
2x7 =
14 u |
7x7 =
49 u |
Before |
7x2 =
14 u |
|
Change |
- 4x2 =
- 8 u |
|
After |
3x2 =
6 u |
49 u |
Comparing Xylia
and Joelle in the end |
|
$1290 more |
Xylia's salary at first is repeated. Make Xylia's salary at first the same. LCM of 2 and 7 is 14.
Amount that Joelle will have more than Xylia in the end
= 49 u - 6 u
= 43 u
43 u = 1290
1 u = 1290 ÷ 43 = 30
Xylia's salary
= 14 u
= 14 x 30
= $420
Answer(s): $420
