Kylie and Penelope had equal amount of money. Each day, Kylie spent $17 and Penelope spent $26. When Kylie had $90 left, Penelope had
25 as much money left as Kylie. How much money did the two girls have at first?
| |
Kylie |
Penelope |
| Before |
17 u + 90 |
26 u + 36 |
| Change |
- 17 u |
- 26 u |
| After |
$90 |
$36 |
Amount that Penelope had left
=
25 x 90
= $36
The amount that Kylie and Penelope had at first is the same.
26 u + 36 = 17 u + 90
26 u - 17 u = 90 - 36
9 u = 54
1 u = 54 ÷ 9 = 6
Amount that Kylie had at first
= 17 u + 90
= 17 x 6 + 90
= 102 + 90
= $192
Total amount that both girls had at first
= 2 x 192
= $384
Answer(s): $384
