Emma had twice as much money as Jen. After Emma spent $10 and Jen spent $9, Emma had $28 more than Jen. How much did Emma have in the end?
| |
Emma |
Jen |
| Before |
2 u |
1 u |
| Change |
- $10 |
- $9 |
| After |
2 u - $10 |
1 u - $9 |
Comparing Emma
and Jen
in the end |
$28 more |
|
If Jen was given another $28, the amounts that Emma and Jen each had in the end would be the same.
2 u - 10 = 1 u - 9 + 28
2 u - 1 u = 10 + 19
1 u = 29
1 u = 29 ÷ 1 = 29
Amount that Emma had in the end
= 2 u - 10
= 2 x 29 - 10
= 58 - 10
= $48
Answer(s): $48
