Tina spent $390 on one refrigerator. Of the remaining salary, she spent
15 on a speaker. She had
37 of the original total left. How much was her salary?
| Refrigerator |
Speaker |
Left |
Remaining total |
Total
|
| $390 |
1x3 |
4x3 |
5x3 |
|
| |
|
3x4 |
|
7x4 |
| 13 u |
3 u |
12 u |
|
28 u |
Fraction of the remaining salary left
= 1 -
15 =
45 45 of the remaining salary =
37 of the total salary
4x35x3 of the remaining salary =
3x47x4 of the total salary
1215 of the remaining salary =
1228 of the total salary
Total salary = 28 u
Amount left = 12 u
Amount spent on the speaker = 15 u - 12 u = 3 u
Amount spent on the refrigerator = 28 u - 12 u - 3 u = 13 u
13 u = 390
1 u = 390 ÷ 13 = 30
Her salary
= 28 u
= 28 x 30
= $840
Answer(s): $840
