Howard and Oscar had $855. Howard spent
35 of his money on a portable air-conditioner. Oscar spent
17 of his money on a dishwasher. The portable air-conditioner cost $201 more than the dishwasher. How much money did Howard have at first?
|
Howard |
Oscar |
Total |
Before |
5 u |
+ 335 |
7x3 = 21 u |
855 |
Change |
- 3 u |
- 201 |
- 1x3 = - 3 u |
|
Comparing the portable air-conditioner and the dishwasher |
201 more |
|
|
After |
2 u |
+ 134 |
6x3 = 18 u |
|
201 ÷ 3 = 67
2 x 67 = 134
5 x 67 = 335
Total amount that Howard and Oscar had at first
= 5 u + 335 + 21 u
= 26 u + 335
26 u + 335 = 855
26 u = 855 - 335
26 u = 520
1 u = 520 ÷ 26 = 20
Amount that Howard had at first
= 5 u + 335
= 5 x 20 + 335
= 100 + 335
= $435
Answer(s): $435