On Monday, Fiona, Emily, Wendy and Hazel spent a total of $106. On Tuesday, Fiona spent twice of what she spent on Monday, Emily spent the same as what she spent on Monday, Wendy spent $17 less than what she spent on Monday, and Hazel spent $11 more than what she spent on Monday. All of them spent an equal amount on Tuesday. How much did Fiona and Hazel spend altogether on Monday?
| |
Fiona |
Emily |
Wendy |
Hazel |
Total |
| Before |
1 u |
3 u |
3 u + $17 |
3 u - $11 |
$106 |
| Change |
x 3 |
|
- $17 |
+ $11 |
|
| After |
3 u |
3 u |
3 u |
3 u |
|
Total amount that the four girls spent on Monday
= 1 u + 3 u + 3 u + 17 + 3 u - 11
= 10 u + 17 - 11
= 10 u + 6
10 u + 6 = 106
10 u = 106 - 6
10 u = 100
1 u = 100 ÷ 10 = 10
Total amount that Fiona and Hazel spent on Monday
= 1 u + 3 u - 11
= 4 u - 11
= 4 x 10 - 11
= 40 - 11
= $29
Answer(s): $29
