David had $59.70 less than Julie. He spent
79 of his money on a pencil which cost $9.10. Julie spent
13 of her money on a windbreaker. How much had Julie left?
| |
David |
Julie |
| Before |
9 u |
3 p |
| Change |
- 7 u |
- 1 p |
| After |
2 u |
2 p |
Amount that David spent on the pencil = 7 u
7 u = 9.10
1 u = 9.10 ÷ 7 = 1.30
Amount that David had at first
= 9 u
= 9 x 1.30
= $11.70
Amount that Julie had at first
= 11.70 + 59.70
= $71.40
Fraction of money that Julie had left
= 1 -
13 =
23 Amount that Julie had at first = 3 p
3 p = 71.40
1 p = 71.40 ÷ 3 = 23.80
Amount that Julie had left
= 2 p
= 2 x 23.80
= $47.60
Answer(s): $47.60
