Anna had $805 more than Tiffany. Anna spent 0.8 of her money and Tiffany spent 10% of her money. In the end, Anna and Tiffany had the same amount of money left. Find the amount of money that Anna had in the end.
| |
Anna |
Tiffany |
Comparing Anna
and Tiffany at first |
805 more |
|
| Before |
5x9 =
45 u |
10x1 =
10 u |
| Change |
- 4x9 =
- 36 u |
- 1x1 =
- 1 u |
| After |
1x9 =
9 u |
9x1 =
9 u |
0.8 =
810 =
45 10% =
10100 =
110 Anna and Tiffany 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 Anna had more than Tiffany at first
= 45 u - 10 u
= 35 u
35 u = 805
1 u = 805 ÷ 35 = 23
Amount that Anna had in the end
= 9 u
= 9 x 23
= $207
Answer(s): $207
