Tiffany had twice as much money as Pamela. After Tiffany spent $12 and Pamela spent $6, Tiffany had $23 more than Pamela. How much did Tiffany have in the end?
| |
Tiffany |
Pamela |
| Before |
2 u |
1 u |
| Change |
- $12 |
- $6 |
| After |
2 u - $12 |
1 u - $6 |
Comparing Tiffany
and Pamela
in the end |
$23 more |
|
If Pamela was given another $23, the amounts that Tiffany and Pamela each had in the end would be the same.
2 u - 12 = 1 u - 6 + 23
2 u - 1 u = 12 + 17
1 u = 29
1 u = 29 ÷ 1 = 29
Amount that Tiffany had in the end
= 2 u - 12
= 2 x 29 - 12
= 58 - 12
= $46
Answer(s): $46
