On Tuesday, Nora, Raeann, Penelope and Emily spent a total of $148. On Wednesday, Nora spent twice of what she spent on Tuesday, Raeann spent the same as what she spent on Tuesday, Penelope spent $10 less than what she spent on Tuesday, and Emily spent $2 more than what she spent on Tuesday. All of them spent an equal amount on Wednesday. How much did Nora and Emily spend altogether on Tuesday?
|
Nora |
Raeann |
Penelope |
Emily |
Total |
Before |
1 u |
3 u |
3 u + $10 |
3 u - $2 |
$148 |
Change |
x 3 |
|
- $10 |
+ $2 |
|
After |
3 u |
3 u |
3 u |
3 u |
|
Total amount that the four girls spent on Tuesday
= 1 u + 3 u + 3 u + 10 + 3 u - 2
= 10 u + 10 - 2
= 10 u + 8
10 u + 8 = 148
10 u = 148 - 8
10 u = 140
1 u = 140 ÷ 10 = 14
Total amount that Nora and Emily spent on Tuesday
= 1 u + 3 u - 2
= 4 u - 2
= 4 x 14 - 2
= 56 - 2
= $54
Answer(s): $54