On Wednesday, Kylie, Gabby, Tina and Nicole spent a total of $139. On Thursday, Kylie spent twice of what she spent on Wednesday, Gabby spent the same as what she spent on Wednesday, Tina spent $17 less than what she spent on Wednesday, and Nicole spent $8 more than what she spent on Wednesday. All of them spent an equal amount on Thursday. How much did Kylie and Nicole spend altogether on Wednesday?
|
Kylie |
Gabby |
Tina |
Nicole |
Total |
Before |
1 u |
3 u |
3 u + $17 |
3 u - $8 |
$139 |
Change |
x 3 |
|
- $17 |
+ $8 |
|
After |
3 u |
3 u |
3 u |
3 u |
|
Total amount that the four girls spent on Wednesday
= 1 u + 3 u + 3 u + 17 + 3 u - 8
= 10 u + 17 - 8
= 10 u + 9
10 u + 9 = 139
10 u = 139 - 9
10 u = 130
1 u = 130 ÷ 10 = 13
Total amount that Kylie and Nicole spent on Wednesday
= 1 u + 3 u - 8
= 4 u - 8
= 4 x 13 - 8
= 52 - 8
= $44
Answer(s): $44