Joelle had $275 less than Tiffany. Tiffany spent 0.8 of her money and Joelle spent 25% of her money. In the end, Tiffany and Joelle had the same amount of money left. Find the amount of money that Tiffany had at first.
| |
Joelle |
Tiffany |
Comparing Tiffany
and Joelle at first |
|
275 more |
| Before |
4x1 =
4 u |
5x3 =
15 u |
| Change |
- 1x1 =
- 1 u |
- 4x3 =
- 12 u |
| After |
3x1 =
3 u |
1x3 =
3 u |
0.8 =
810 =
45 25% =
25100 =
14 Joelle 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 3 is 3.
Amount that Joelle had less than Tiffany at first
= 15 u - 4 u
= 11 u
11 u = 275
1 u = 275 ÷ 11 = 25
Amount that Tiffany had at first
= 15 u
= 15 x 25
= $375
Answer(s): $375
