On Saturday, Xandra, Sabrina, Nicole and Jane spent a total of $215. On Sunday, Xandra spent twice of what she spent on Saturday, Sabrina spent the same as what she spent on Saturday, Nicole spent $19 less than what she spent on Saturday, and Jane spent $4 more than what she spent on Saturday. All of them spent an equal amount on Sunday. How much did Xandra and Jane spend altogether on Saturday?
| |
Xandra |
Sabrina |
Nicole |
Jane |
Total |
| Before |
1 u |
3 u |
3 u + $19 |
3 u - $4 |
$215 |
| Change |
x 3 |
|
- $19 |
+ $4 |
|
| After |
3 u |
3 u |
3 u |
3 u |
|
Total amount that the four girls spent on Saturday
= 1 u + 3 u + 3 u + 19 + 3 u - 4
= 10 u + 19 - 4
= 10 u + 15
10 u + 15 = 215
10 u = 215 - 15
10 u = 200
1 u = 200 ÷ 10 = 20
Total amount that Xandra and Jane spent on Saturday
= 1 u + 3 u - 4
= 4 u - 4
= 4 x 20 - 4
= 80 - 4
= $76
Answer(s): $76
