Roshel had $385 less than Anna. Anna spent 0.8 of her money and Roshel spent 10% of her money. In the end, Anna and Roshel had the same amount of money left. Find the amount of money that Anna had at first.
| |
Roshel |
Anna |
Comparing Anna
and Roshel at first |
|
385 more |
| Before |
10x1 =
10 u |
5x9 =
45 u |
| Change |
- 1x1 =
- 1 u |
- 4x9 =
- 36 u |
| After |
9x1 =
9 u |
1x9 =
9 u |
0.8 =
810 =
45 10% =
10100 =
110 Roshel and Anna had the same amount of money in the end. Make the amount that each had in the end the same. LCM of 1 and 9 is 9.
Amount that Roshel had less than Anna at first
= 45 u - 10 u
= 35 u
35 u = 385
1 u = 385 ÷ 35 = 11
Amount that Anna had at first
= 45 u
= 45 x 11
= $495
Answer(s): $495
