35 Xylia's money was equal to
23 of Abi's money at first. After Xylia spent $1.80 and Abi spent $0.60, Xylia had
23 as much money as Abi.
- How much did Abi have at first? Express your answer in 2 decimal places.
- How much did Xylia have in the end? Express your answer in 2 decimal places.
| |
Make p the same
(3)x3 |
Xylia
(1) |
Abi
(2) |
Make p the same
(4)x2 |
| Before |
30 u |
10 u |
9 u |
18 u |
| Change |
- 5.4 |
- 1.8 |
- 0.6 |
- 1.2 |
| After |
6 p |
2 p |
3p |
6 p |
35 Xylia's money =
23 Abi's money
610 Xylia's money =
69 Abi's money
Xylia's money : Abi's money = 10 : 9
(3) = (4)
30 u - 5.4 = 18 u - 1.2
30 u - 18 u = 5.4 - 1.2
12 u = 4.2
1 u = 0.35
Amount Abi has at first
= 9 u
= 9 x 0.35
= 3.15 (a)
Amount Xylia has in the end
= 10 u - 1.8
= (10 x 0.35) - 1.8
= 1.7 (b)
Answers: (a) $3.15; (b) $1.70
