Sarah spent $270 on one washing machine. Of the remaining salary, she spent
27 on a water heater. She had
15 of the original total left. How much was her salary?
| Washing Machine |
Water Heater |
Left |
Remaining total |
Total
|
| $270 |
2x1 |
5x1 |
7x1 |
|
| |
|
1x5 |
|
5x5 |
| 18 u |
2 u |
5 u |
|
25 u |
Fraction of the remaining salary left
= 1 -
27 =
57 57 of the remaining salary =
15 of the total salary
5x17x1 of the remaining salary =
1x55x5 of the total salary
57 of the remaining salary =
525 of the total salary
Total salary = 25 u
Amount left = 5 u
Amount spent on the water heater = 7 u - 5 u = 2 u
Amount spent on the washing machine = 25 u - 5 u - 2 u = 18 u
18 u = 270
1 u = 270 ÷ 18 = 15
Her salary
= 25 u
= 25 x 15
= $375
Answer(s): $375
