Ahmad and Cody had $760. Ahmad spent
35 of his money on a laptop. Cody spent
15 of his money on a notebook. The laptop cost $132 more than the notebook. How much money had Ahmad left?
| |
Ahmad |
Cody |
Total |
Before |
5 u |
+ 220 |
5x3 =
15 u |
760 |
Change |
- 3 u |
- 132 |
- 1x3 =
- 3 u |
|
Comparing the laptop
and the notebook |
132 more |
|
|
After |
2 u |
+ 88 |
4x3 =
12 u |
|
132 ÷ 3 = 44
2 x 44 = 88
5 x 44 = 220
Total amount that Ahmad and Cody had at first
= 5 u + 220 + 15 u
= 20 u + 220
20 u + 220 = 760
20 u = 760 - 220
20 u = 540
1 u = 540 ÷ 20 = 27
Amount that Ahmad had left
= 2 u + 88
= 2 x 27 + 88
= 54 + 88
= $142
Answer(s): $142
