Tammy's salary to Gillian's salary is 7 : 9. If Tammy spends
34 of her salary, Gillian will have $2320 more than her. How much salary does Tammy have?
| |
Tammy |
Gillian |
Comparing Tammy
and Gillian at first |
7x4 =
28 u |
9x4 =
36 u |
Before |
4x7 =
28 u |
|
Change |
- 3x7 =
- 21 u |
|
After |
1x7 =
7 u |
36 u |
Comparing Tammy
and Gillian in the end |
|
$2320 more |
Tammy's salary at first is repeated. Make Tammy's salary at first the same. LCM of 7 and 4 is 28.
Amount that Gillian will have more than Tammy in the end
= 36 u - 7 u
= 29 u
29 u = 2320
1 u = 2320 ÷ 29 = 80
Tammy's salary
= 28 u
= 28 x 80
= $2240
Answer(s): $2240
