Penelope's salary to Joelle's salary is 2 : 7. If Penelope spends
34 of her salary, she will have $1170 less than Joelle. How much salary does Joelle have?
| |
Penelope |
Joelle |
Comparing Penelope
and Joelle at first |
2x2 =
4 u |
7x2 =
14 u |
Before |
4x1 =
4 u |
|
Change |
- 3x1 =
- 3 u |
|
After |
1x1 =
1 u |
14 u |
Comparing Penelope
and Joelle in the end |
|
$1170 less |
Penelope's salary at first is repeated. Make Penelope's salary at first the same. LCM of 2 and 4 is 4.
Amount that Penelope will have less than Joelle in the end
= 14 u - 1 u
= 13 u
13 u = 1170
1 u = 1170 ÷ 13 = 90
Joelle's salary
= 14 u
= 14 x 90
= $1260
Answer(s): $1260
