Sarah and Vincent went shopping with a total of $85. After Sarah spent
27 of her money and Vincent spent
12 of his money, they each had an equal amount of money left. How much money did they spend altogether?
| |
Sarah |
Vincent |
Total |
Before |
7 u |
2x5 =
10 u |
$85 |
Change |
- 2 u |
- 1x5 =
- 5 u |
|
After |
5 u |
1x5 =
5 u |
|
The amount that Sarah and Vincent each had in the end is the same. Make the amount that each had in the end the same. LCM of 5 and 1 is 5.
Total amount that Sarah and Vincent had at first
= 7 u + 10 u
= 17 u
17 u = 85
1 u = 85 ÷ 17 = 5
Total amount that Sarah and Vincent spent
= 2 u + 5 u
= 7 u
= 7 x 5
= $35
Answer(s): $35
