Charlie and Bryan had $1135. Charlie spent
38 of his money on a home theater system. Bryan spent
17 of his money on a refrigerator. The home theater system cost $132 more than the refrigerator. How much money had Charlie left?
|
Charlie |
Bryan |
Total |
Before |
8 u |
+ 352 |
7x3 = 21 u |
1135 |
Change |
- 3 u |
- 132 |
- 1x3 = - 3 u |
|
Comparing the home theater system and the refrigerator |
132 more |
|
|
After |
5 u |
+ 220 |
6x3 = 18 u |
|
132 ÷ 3 = 44
5 x 44 = 220
8 x 44 = 352
Total amount that Charlie and Bryan had at first
= 8 u + 352 + 21 u
= 29 u + 352
29 u + 352 = 1135
29 u = 1135 - 352
29 u = 783
1 u = 783 ÷ 29 = 27
Amount that Charlie had left
= 5 u + 220
= 5 x 27 + 220
= 135 + 220
= $355
Answer(s): $355