Vincent had $23.80 less than Mary. He spent
56 of his money on a pen which cost $11.50. Mary spent
58 of her money on a shirt. How much had Mary left?
| |
Vincent |
Mary |
| Before |
6 u |
8 p |
| Change |
- 5 u |
- 5 p |
| After |
1 u |
3 p |
Amount that Vincent spent on the pen = 5 u
5 u = 11.50
1 u = 11.50 ÷ 5 = 2.30
Amount that Vincent had at first
= 6 u
= 6 x 2.30
= $13.80
Amount that Mary had at first
= 13.80 + 23.80
= $37.60
Fraction of money that Mary had left
= 1 -
58 =
38 Amount that Mary had at first = 8 p
8 p = 37.60
1 p = 37.60 ÷ 8 = 4.70
Amount that Mary had left
= 3 p
= 3 x 4.70
= $14.10
Answer(s): $14.10
