Kylie had $115 less than Winnie. Winnie spent 0.4 of her money and Kylie spent 10% of her money. In the end, Winnie and Kylie had the same amount of money left. Find the amount of money that Winnie had at first.
| |
Kylie |
Winnie |
Comparing Winnie
and Kylie at first |
|
115 more |
| Before |
10x1 =
10 u |
5x3 =
15 u |
| Change |
- 1x1 =
- 1 u |
- 2x3 =
- 6 u |
| After |
9x1 =
9 u |
3x3 =
9 u |
0.4 =
410 =
25 10% =
10100 =
110 Kylie and Winnie had the same amount of money in the end. Make the amount that each had in the end the same. LCM of 3 and 9 is 9.
Amount that Kylie had less than Winnie at first
= 15 u - 10 u
= 5 u
5 u = 115
1 u = 115 ÷ 5 = 23
Amount that Winnie had at first
= 15 u
= 15 x 23
= $345
Answer(s): $345
