Cole and Ethan had $1813. Cole spent
58 of his money on a notebook. Ethan spent
17 of his money on a computer. The notebook cost $300 more than the computer. How much money had Cole left?
| |
Cole |
Ethan |
Total |
Before |
8 u |
+ 480 |
7x5 =
35 u |
1813 |
Change |
- 5 u |
- 300 |
- 1x5 =
- 5 u |
|
Comparing the notebook
and the computer |
300 more |
|
|
After |
3 u |
+ 180 |
6x5 =
30 u |
|
300 ÷ 5 = 60
3 x 60 = 180
8 x 60 = 480
Total amount that Cole and Ethan had at first
= 8 u + 480 + 35 u
= 43 u + 480
43 u + 480 = 1813
43 u = 1813 - 480
43 u = 1333
1 u = 1333 ÷ 43 = 31
Amount that Cole had left
= 3 u + 180
= 3 x 31 + 180
= 93 + 180
= $273
Answer(s): $273
