On Wednesday, Wendy, Penelope, Xandra and Hazel spent a total of $198. On Thursday, Wendy spent twice of what she spent on Wednesday, Penelope spent the same as what she spent on Wednesday, Xandra spent $11 less than what she spent on Wednesday, and Hazel spent $3 more than what she spent on Wednesday. All of them spent an equal amount on Thursday. How much did Wendy and Hazel spend altogether on Wednesday?
|
Wendy |
Penelope |
Xandra |
Hazel |
Total |
Before |
1 u |
3 u |
3 u + $11 |
3 u - $3 |
$198 |
Change |
x 3 |
|
- $11 |
+ $3 |
|
After |
3 u |
3 u |
3 u |
3 u |
|
Total amount that the four girls spent on Wednesday
= 1 u + 3 u + 3 u + 11 + 3 u - 3
= 10 u + 11 - 3
= 10 u + 8
10 u + 8 = 198
10 u = 198 - 8
10 u = 190
1 u = 190 ÷ 10 = 19
Total amount that Wendy and Hazel spent on Wednesday
= 1 u + 3 u - 3
= 4 u - 3
= 4 x 19 - 3
= 76 - 3
= $73
Answer(s): $73