On Tuesday, Gabby, Jen, Shiyun and Jaslyn spent a total of $82. On Wednesday, Gabby spent twice of what she spent on Tuesday, Jen spent the same as what she spent on Tuesday, Shiyun spent $17 less than what she spent on Tuesday, and Jaslyn spent $5 more than what she spent on Tuesday. All of them spent an equal amount on Wednesday. How much did Gabby and Jaslyn spend altogether on Tuesday?
|
Gabby |
Jen |
Shiyun |
Jaslyn |
Total |
Before |
1 u |
2 u |
2 u + $17 |
2 u - $5 |
$82 |
Change |
x 2 |
|
- $17 |
+ $5 |
|
After |
2 u |
2 u |
2 u |
2 u |
|
Total amount that the four girls spent on Tuesday
= 1 u + 2 u + 2 u + 17 + 2 u - 5
= 7 u + 17 - 5
= 7 u + 12
7 u + 12 = 82
7 u = 82 - 12
7 u = 70
1 u = 70 ÷ 7 = 10
Total amount that Gabby and Jaslyn spent on Tuesday
= 1 u + 2 u - 5
= 3 u - 5
= 3 x 10 - 5
= 30 - 5
= $25
Answer(s): $25