Riordan had $76.20 less than Irene. He spent
49 of his money on a stapler which cost $8.40. Irene spent
13 of her money on a sweater. How much had Irene left?
| |
Riordan |
Irene |
| Before |
9 u |
3 p |
| Change |
- 4 u |
- 1 p |
| After |
5 u |
2 p |
Amount that Riordan spent on the stapler = 4 u
4 u = 8.40
1 u = 8.40 ÷ 4 = 2.10
Amount that Riordan had at first
= 9 u
= 9 x 2.10
= $18.90
Amount that Irene had at first
= 18.90 + 76.20
= $95.10
Fraction of money that Irene had left
= 1 -
13 =
23 Amount that Irene had at first = 3 p
3 p = 95.10
1 p = 95.10 ÷ 3 = 31.70
Amount that Irene had left
= 2 p
= 2 x 31.70
= $63.40
Answer(s): $63.40
