Zoe and Ethan went shopping with a total of $160. After Zoe spent
47 of her money and Ethan spent
23 of his money, they each had an equal amount of money left. How much money did they spend altogether?
| |
Zoe |
Ethan |
Total |
Before |
7 u |
3x3 =
9 u |
$160 |
Change |
- 4 u |
- 2x3 =
- 6 u |
|
After |
3 u |
1x3 =
3 u |
|
The amount that Zoe and Ethan each had in the end is the same. Make the amount that each had in the end the same. LCM of 3 and 1 is 3.
Total amount that Zoe and Ethan had at first
= 7 u + 9 u
= 16 u
16 u = 160
1 u = 160 ÷ 16 = 10
Total amount that Zoe and Ethan spent
= 4 u + 6 u
= 10 u
= 10 x 10
= $100
Answer(s): $100
