Jack and Daniel had $2060. Jack spent
59 of his money on a home theater system. Daniel spent
18 of his money on a washing machine. The home theater system cost $110 more than the washing machine. How much money did Jack have at first?
|
Jack |
Daniel |
Total |
Before |
9 u |
+ 198 |
8x5 = 40 u |
2060 |
Change |
- 5 u |
- 110 |
- 1x5 = - 5 u |
|
Comparing the home theater system and the washing machine |
110 more |
|
|
After |
4 u |
+ 88 |
7x5 = 35 u |
|
110 ÷ 5 = 22
4 x 22 = 88
9 x 22 = 198
Total amount that Jack and Daniel had at first
= 9 u + 198 + 40 u
= 49 u + 198
49 u + 198 = 2060
49 u = 2060 - 198
49 u = 1862
1 u = 1862 ÷ 49 = 38
Amount that Jack had at first
= 9 u + 198
= 9 x 38 + 198
= 342 + 198
= $540
Answer(s): $540