On Tuesday, Sabrina, Raeann, Julie and Nicole spent a total of $149. On Wednesday, Sabrina spent twice of what she spent on Tuesday, Raeann spent the same as what she spent on Tuesday, Julie spent $18 less than what she spent on Tuesday, and Nicole spent $2 more than what she spent on Tuesday. All of them spent an equal amount on Wednesday. How much did Sabrina and Nicole spend altogether on Tuesday?
|
Sabrina |
Raeann |
Julie |
Nicole |
Total |
Before |
1 u |
2 u |
2 u + $18 |
2 u - $2 |
$149 |
Change |
x 2 |
|
- $18 |
+ $2 |
|
After |
2 u |
2 u |
2 u |
2 u |
|
Total amount that the four girls spent on Tuesday
= 1 u + 2 u + 2 u + 18 + 2 u - 2
= 7 u + 18 - 2
= 7 u + 16
7 u + 16 = 149
7 u = 149 - 16
7 u = 133
1 u = 133 ÷ 7 = 19
Total amount that Sabrina and Nicole spent on Tuesday
= 1 u + 2 u - 2
= 3 u - 2
= 3 x 19 - 2
= 57 - 2
= $55
Answer(s): $55