Gem had $49 less than Olivia at first. After Olivia and Gem spent an equal amount of money, Gem had
310 as much as Olivia. How much money did Gem have left?
| |
Gem |
Olivia |
Difference |
| Before |
1 u |
1 u + $49 |
$49 |
| Change |
- 1 |
- 1 |
|
| After |
3 p |
10 p |
7 p |
Difference in the amounts between Olivia and Gem
= 10 p - 3 p
= 7 p
Since both Olivia and Gem spent an equal amount, the difference in the amounts that Olivia and Gem had at first and in the end remains unchanged.
7 p = 49
1 p = 49 ÷ 7 = 7
Amount that Gem had left
= 3 p
= 3 x 7
= $21
Answer(s): $21
