Sam had $20.10 less than Joelle. He spent
45 of his money on a marker which cost $10.80. Joelle spent
57 of her money on a windbreaker. How much had Joelle left?
| |
Sam |
Joelle |
| Before |
5 u |
7 p |
| Change |
- 4 u |
- 5 p |
| After |
1 u |
2 p |
Amount that Sam spent on the marker = 4 u
4 u = 10.80
1 u = 10.80 ÷ 4 = 2.70
Amount that Sam had at first
= 5 u
= 5 x 2.70
= $13.50
Amount that Joelle had at first
= 13.50 + 20.10
= $33.60
Fraction of money that Joelle had left
= 1 -
57 =
27 Amount that Joelle had at first = 7 p
7 p = 33.60
1 p = 33.60 ÷ 7 = 4.80
Amount that Joelle had left
= 2 p
= 2 x 4.80
= $9.60
Answer(s): $9.60
