Howard and Ahmad had $738. Howard spent
49 of his money on a notebook. Ahmad spent
13 of his money on a computer. The notebook cost $104 more than the computer. How much money had Howard left?
|
Howard |
Ahmad |
Total |
Before |
9 u |
+ 234 |
3x4 = 12 u |
738 |
Change |
- 4 u |
- 104 |
- 1x4 = - 4 u |
|
Comparing the notebook and the computer |
104 more |
|
|
After |
5 u |
+ 130 |
2x4 = 8 u |
|
104 ÷ 4 = 26
5 x 26 = 130
9 x 26 = 234
Total amount that Howard and Ahmad had at first
= 9 u + 234 + 12 u
= 21 u + 234
21 u + 234 = 738
21 u = 738 - 234
21 u = 504
1 u = 504 ÷ 21 = 24
Amount that Howard had left
= 5 u + 130
= 5 x 24 + 130
= 120 + 130
= $250
Answer(s): $250