Ethan and George had $1042. Ethan spent
59 of his money on a laptop. George spent
14 of his money on a computer. The laptop cost $160 more than the computer. How much money had Ethan left?
| |
Ethan |
George |
Total |
Before |
9 u |
+ 288 |
4x5 =
20 u |
1042 |
Change |
- 5 u |
- 160 |
- 1x5 =
- 5 u |
|
Comparing the laptop
and the computer |
160 more |
|
|
After |
4 u |
+ 128 |
3x5 =
15 u |
|
160 ÷ 5 = 32
4 x 32 = 128
9 x 32 = 288
Total amount that Ethan and George had at first
= 9 u + 288 + 20 u
= 29 u + 288
29 u + 288 = 1042
29 u = 1042 - 288
29 u = 754
1 u = 754 ÷ 29 = 26
Amount that Ethan had left
= 4 u + 128
= 4 x 26 + 128
= 104 + 128
= $232
Answer(s): $232
