35 Yen's money was equal to
25 of Nicole's money at first. After Yen spent $1.80 and Nicole spent $1.10, Yen had
25 as much money as Nicole.
- How much did Nicole have at first? Express your answer in 2 decimal places.
- How much did Yen have in the end? Express your answer in 2 decimal places.
| |
Make p the same
(3)x5 |
Yen
(1) |
Nicole
(2) |
Make p the same
(4)x2 |
| Before |
50 u |
10 u |
15 u |
30 u |
| Change |
- 9 |
- 1.8 |
- 1.1 |
- 2.2 |
| After |
10 p |
2 p |
5p |
10 p |
35 Yen's money =
25 Nicole's money
610 Yen's money =
615 Nicole's money
Yen's money : Nicole's money = 10 : 15
(3) = (4)
50 u - 9 = 30 u - 2.2
50 u - 30 u = 9 - 2.2
20 u = 6.8
1 u = 0.34
Amount Nicole has at first
= 15 u
= 15 x 0.34
= 5.1 (a)
Amount Yen has in the end
= 10 u - 1.8
= (10 x 0.34) - 1.8
= 1.6 (b)
Answers: (a) $5.10; (b) $1.60
