35 Joelle's money was equal to
25 of Vanessa's money at first. After Joelle spent $2.40 and Vanessa spent $0.70, Joelle had
25 as much money as Vanessa.
- How much did Vanessa have at first? Express your answer in 2 decimal places.
- How much did Joelle have in the end? Express your answer in 2 decimal places.
| |
Make p the same
(3)x5 |
Joelle
(1) |
Vanessa
(2) |
Make p the same
(4)x2 |
| Before |
50 u |
10 u |
15 u |
30 u |
| Change |
- 12 |
- 2.4 |
- 0.7 |
- 1.4 |
| After |
10 p |
2 p |
5p |
10 p |
35 Joelle's money =
25 Vanessa's money
610 Joelle's money =
615 Vanessa's money
Joelle's money : Vanessa's money = 10 : 15
(3) = (4)
50 u - 12 = 30 u - 1.4
50 u - 30 u = 12 - 1.4
20 u = 10.6
1 u = 0.53
Amount Vanessa has at first
= 15 u
= 15 x 0.53
= 7.95 (a)
Amount Joelle has in the end
= 10 u - 2.4
= (10 x 0.53) - 2.4
= 2.9 (b)
Answers: (a) $7.95; (b) $2.90
