Min had $425 more than Tammy. Min spent 0.8 of her money and Tammy spent 30% of her money. In the end, Min and Tammy had the same amount of money left. Find the amount of money that Min had in the end.
| |
Min |
Tammy |
Comparing Min
and Tammy at first |
425 more |
|
| Before |
5x7 =
35 u |
10x1 =
10 u |
| Change |
- 4x7 =
- 28 u |
- 3x1 =
- 3 u |
| After |
1x7 =
7 u |
7x1 =
7 u |
0.8 =
810 =
45 30% =
30100 =
310 Min and Tammy had the same amount of money in the end. Make the amount that each had in the end the same. LCM of 1 and 7 is 7.
Amount that Min had more than Tammy at first
= 35 u - 10 u
= 25 u
25 u = 425
1 u = 425 ÷ 25 = 17
Amount that Min had in the end
= 7 u
= 7 x 17
= $119
Answer(s): $119
