35 Joelle's money was equal to
25 of Shannon's money at first. After Joelle spent $1.60 and Shannon spent $0.60, Joelle had
25 as much money as Shannon.
- How much did Shannon 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) |
Shannon
(2) |
Make p the same
(4)x2 |
| Before |
50 u |
10 u |
15 u |
30 u |
| Change |
- 8 |
- 1.6 |
- 0.6 |
- 1.2 |
| After |
10 p |
2 p |
5p |
10 p |
35 Joelle's money =
25 Shannon's money
610 Joelle's money =
615 Shannon's money
Joelle's money : Shannon's money = 10 : 15
(3) = (4)
50 u - 8 = 30 u - 1.2
50 u - 30 u = 8 - 1.2
20 u = 6.8
1 u = 0.34
Amount Shannon has at first
= 15 u
= 15 x 0.34
= 5.1 (a)
Amount Joelle has in the end
= 10 u - 1.6
= (10 x 0.34) - 1.6
= 1.8 (b)
Answers: (a) $5.10; (b) $1.80
