Tom and Cole had $1127. Tom spent
38 of his money on a laptop. Cole spent
15 of his money on a dishwasher. The laptop cost $138 more than the dishwasher. How much money did Tom have at first?
| |
Tom |
Cole |
Total |
Before |
8 u |
+ 368 |
5x3 =
15 u |
1127 |
Change |
- 3 u |
- 138 |
- 1x3 =
- 3 u |
|
Comparing the laptop
and the dishwasher |
138 more |
|
|
After |
5 u |
+ 230 |
4x3 =
12 u |
|
138 ÷ 3 = 46
5 x 46 = 230
8 x 46 = 368
Total amount that Tom and Cole had at first
= 8 u + 368 + 15 u
= 23 u + 368
23 u + 368 = 1127
23 u = 1127 - 368
23 u = 759
1 u = 759 ÷ 23 = 33
Amount that Tom had at first
= 8 u + 368
= 8 x 33 + 368
= 264 + 368
= $632
Answer(s): $632
