Tommy and Fabian had $840. Tommy spent
35 of his money on a dishwasher. Fabian spent
14 of his money on a television. The dishwasher cost $300 more than the television. How much money had Tommy left?
| |
Tommy |
Fabian |
Total |
Before |
5 u |
+ 500 |
4x3 =
12 u |
840 |
Change |
- 3 u |
- 300 |
- 1x3 =
- 3 u |
|
Comparing the dishwasher
and the television |
300 more |
|
|
After |
2 u |
+ 200 |
3x3 =
9 u |
|
300 ÷ 3 = 100
2 x 100 = 200
5 x 100 = 500
Total amount that Tommy and Fabian had at first
= 5 u + 500 + 12 u
= 17 u + 500
17 u + 500 = 840
17 u = 840 - 500
17 u = 340
1 u = 340 ÷ 17 = 20
Amount that Tommy had left
= 2 u + 200
= 2 x 20 + 200
= 40 + 200
= $240
Answer(s): $240
