Sam had $42.90 less than Marion. He spent
35 of his money on a pen which cost $4.50. Marion spent
37 of her money on a dress. How much had Marion left?
| |
Sam |
Marion |
| Before |
5 u |
7 p |
| Change |
- 3 u |
- 3 p |
| After |
2 u |
4 p |
Amount that Sam spent on the pen = 3 u
3 u = 4.50
1 u = 4.50 ÷ 3 = 1.50
Amount that Sam had at first
= 5 u
= 5 x 1.50
= $7.50
Amount that Marion had at first
= 7.50 + 42.90
= $50.40
Fraction of money that Marion had left
= 1 -
37 =
47 Amount that Marion had at first = 7 p
7 p = 50.40
1 p = 50.40 ÷ 7 = 7.20
Amount that Marion had left
= 4 p
= 4 x 7.20
= $28.80
Answer(s): $28.80
