45 Gillian's money was equal to
23 of Yoko's money at first. After Gillian spent $2.20 and Yoko spent $0.70, Gillian had
34 as much money as Yoko.
- How much did Yoko have at first? Express your answer in 2 decimal places.
- How much did Gillian have in the end? Express your answer in 2 decimal places.
| |
Make p the same
(3)x4 |
Gillian
(1) |
Yoko
(2) |
Make p the same
(4)x3 |
| Before |
20 u |
5 u |
6 u |
18 u |
| Change |
- 8.8 |
- 2.2 |
- 0.7 |
- 2.1 |
| After |
12 p |
3 p |
4p |
12 p |
45 Gillian's money =
23 Yoko's money
45 Gillian's money =
46 Yoko's money
Gillian's money : Yoko's money = 5 : 6
(3) = (4)
20 u - 8.8 = 18 u - 2.1
20 u - 18 u = 8.8 - 2.1
2 u = 6.7
1 u = 3.35
Amount Yoko has at first
= 6 u
= 6 x 3.35
= 20.1 (a)
Amount Gillian has in the end
= 5 u - 2.2
= (5 x 3.35) - 2.2
= 14.55 (b)
Answers: (a) $20.10; (b) $14.55
