45 Kylie's money was equal to
23 of Dana's money at first. After Kylie spent $1.50 and Dana spent $1.20, Kylie had
23 as much money as Dana.
- How much did Dana 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) |
Dana (2) |
Make p the same (4)x2 |
Before |
15 u |
5 u |
6 u |
12 u |
Change |
- 4.5 |
- 1.5 |
- 1.2 |
- 2.4 |
After |
6 p |
2 p |
3p |
6 p |
45 Kylie's money =
23 Dana's money
45 Kylie's money =
46 Dana's money
Kylie's money : Dana's money = 5 : 6
(3) = (4)
15 u - 4.5 = 12 u - 2.4
15 u - 12 u = 4.5 - 2.4
3 u = 2.1
1 u = 0.7
Amount Dana has at first
= 6 u
= 6 x 0.7
= 4.2 (a)
Amount Kylie has in the end
= 5 u - 1.5
= (5 x 0.7) - 1.5
= 2 (b)
Answers: (a) $4.20; (b) $2.00