On Thursday, Nicole, Kimberly, Vanessa and Sabrina spent a total of $92. On Friday, Nicole spent twice of what she spent on Thursday, Kimberly spent the same as what she spent on Thursday, Vanessa spent $12 less than what she spent on Thursday, and Sabrina spent $4 more than what she spent on Thursday. All of them spent an equal amount on Friday. How much did Nicole and Sabrina spend altogether on Thursday?
|
Nicole |
Kimberly |
Vanessa |
Sabrina |
Total |
Before |
1 u |
2 u |
2 u + $12 |
2 u - $4 |
$92 |
Change |
x 2 |
|
- $12 |
+ $4 |
|
After |
2 u |
2 u |
2 u |
2 u |
|
Total amount that the four girls spent on Thursday
= 1 u + 2 u + 2 u + 12 + 2 u - 4
= 7 u + 12 - 4
= 7 u + 8
7 u + 8 = 92
7 u = 92 - 8
7 u = 84
1 u = 84 ÷ 7 = 12
Total amount that Nicole and Sabrina spent on Thursday
= 1 u + 2 u - 4
= 3 u - 4
= 3 x 12 - 4
= 36 - 4
= $32
Answer(s): $32