Abi's salary to Joelle's salary is 2 : 9. If Abi spends
34 of her salary, Joelle will have $170 more than her. How much salary does Abi have?
| |
Abi |
Joelle |
Comparing Abi
and Joelle at first |
2x2 =
4 u |
9x2 =
18 u |
Before |
4x1 =
4 u |
|
Change |
- 3x1 =
- 3 u |
|
After |
1x1 =
1 u |
18 u |
Comparing Abi
and Joelle in the end |
|
$170 more |
Abi's salary at first is repeated. Make Abi's salary at first the same. LCM of 2 and 4 is 4.
Amount that Joelle will have more than Abi in the end
= 18 u - 1 u
= 17 u
17 u = 170
1 u = 170 ÷ 17 = 10
Abi's salary
= 4 u
= 4 x 10
= $40
Answer(s): $40
