Ryan and Cole had $1079. Ryan spent
35 of his money on a computer. Cole spent
16 of his money on a laptop. The computer cost $261 more than the laptop. How much money had Ryan left?
| |
Ryan |
Cole |
Total |
Before |
5 u |
+ 435 |
6x3 =
18 u |
1079 |
Change |
- 3 u |
- 261 |
- 1x3 =
- 3 u |
|
Comparing the computer
and the laptop |
261 more |
|
|
After |
2 u |
+ 174 |
5x3 =
15 u |
|
261 ÷ 3 = 87
2 x 87 = 174
5 x 87 = 435
Total amount that Ryan and Cole had at first
= 5 u + 435 + 18 u
= 23 u + 435
23 u + 435 = 1079
23 u = 1079 - 435
23 u = 644
1 u = 644 ÷ 23 = 28
Amount that Ryan had left
= 2 u + 174
= 2 x 28 + 174
= 56 + 174
= $230
Answer(s): $230
