On Friday, Nora, Emily, Ivory and Pamela spent a total of $148. On Saturday, Nora spent twice of what she spent on Friday, Emily spent the same as what she spent on Friday, Ivory spent $16 less than what she spent on Friday, and Pamela spent $8 more than what she spent on Friday. All of them spent an equal amount on Saturday. How much did Nora and Pamela spend altogether on Friday?
|
Nora |
Emily |
Ivory |
Pamela |
Total |
Before |
1 u |
2 u |
2 u + $16 |
2 u - $8 |
$148 |
Change |
x 2 |
|
- $16 |
+ $8 |
|
After |
2 u |
2 u |
2 u |
2 u |
|
Total amount that the four girls spent on Friday
= 1 u + 2 u + 2 u + 16 + 2 u - 8
= 7 u + 16 - 8
= 7 u + 8
7 u + 8 = 148
7 u = 148 - 8
7 u = 140
1 u = 140 ÷ 7 = 20
Total amount that Nora and Pamela spent on Friday
= 1 u + 2 u - 8
= 3 u - 8
= 3 x 20 - 8
= 60 - 8
= $52
Answer(s): $52