35 Kylie's money was equal to
23 of Hilda's money at first. After Kylie spent $1.60 and Hilda spent $1.20, Kylie had
23 as much money as Hilda.
- How much did Hilda have at first? Express your answer in 2 decimal places.
- How much did Kylie have in the end? Express your answer in 2 decimal places.
| |
Make p the same
(3)x3 |
Kylie
(1) |
Hilda
(2) |
Make p the same
(4)x2 |
| Before |
30 u |
10 u |
9 u |
18 u |
| Change |
- 4.8 |
- 1.6 |
- 1.2 |
- 2.4 |
| After |
6 p |
2 p |
3p |
6 p |
35 Kylie's money =
23 Hilda's money
610 Kylie's money =
69 Hilda's money
Kylie's money : Hilda's money = 10 : 9
(3) = (4)
30 u - 4.8 = 18 u - 2.4
30 u - 18 u = 4.8 - 2.4
12 u = 2.4
1 u = 0.2
Amount Hilda has at first
= 9 u
= 9 x 0.2
= 1.8 (a)
Amount Kylie has in the end
= 10 u - 1.6
= (10 x 0.2) - 1.6
= 0.4 (b)
Answers: (a) $1.80; (b) $0.40
