Elijah and Julian had $1416. Elijah spent
25 of his money on a washing machine. Julian spent
17 of his money on a notebook. The washing machine cost $270 more than the notebook. How much money had Elijah left?
|
Elijah |
Julian |
Total |
Before |
5 u |
+ 675 |
7x2 = 14 u |
1416 |
Change |
- 2 u |
- 270 |
- 1x2 = - 2 u |
|
Comparing the washing machine and the notebook |
270 more |
|
|
After |
3 u |
+ 405 |
6x2 = 12 u |
|
270 ÷ 2 = 135
3 x 135 = 405
5 x 135 = 675
Total amount that Elijah and Julian had at first
= 5 u + 675 + 14 u
= 19 u + 675
19 u + 675 = 1416
19 u = 1416 - 675
19 u = 741
1 u = 741 ÷ 19 = 39
Amount that Elijah had left
= 3 u + 405
= 3 x 39 + 405
= 117 + 405
= $522
Answer(s): $522