35 Shannon's money was equal to
25 of Anna's money at first. After Shannon spent $2.40 and Anna spent $0.60, Shannon had
25 as much money as Anna.
- How much did Anna have at first? Express your answer in 2 decimal places.
- How much did Shannon have in the end? Express your answer in 2 decimal places.
| |
Make p the same
(3)x5 |
Shannon
(1) |
Anna
(2) |
Make p the same
(4)x2 |
| Before |
50 u |
10 u |
15 u |
30 u |
| Change |
- 12 |
- 2.4 |
- 0.6 |
- 1.2 |
| After |
10 p |
2 p |
5p |
10 p |
35 Shannon's money =
25 Anna's money
610 Shannon's money =
615 Anna's money
Shannon's money : Anna's money = 10 : 15
(3) = (4)
50 u - 12 = 30 u - 1.2
50 u - 30 u = 12 - 1.2
20 u = 10.8
1 u = 0.54
Amount Anna has at first
= 15 u
= 15 x 0.54
= 8.1 (a)
Amount Shannon has in the end
= 10 u - 2.4
= (10 x 0.54) - 2.4
= 3 (b)
Answers: (a) $8.10; (b) $3.00
