Cody had $190 less than Owen. If Owen spends $140 and Cody's mother gave Cody $70, Owen will have
15 as much money as Cody. How much money did Cody and Owen have?
| |
Make p the same
(1)x5 = (3) |
Cody
(1) |
Owen
(2) |
| Before |
5 u |
1 u |
1 u + 190 |
| Change |
- 700 |
- 140 |
+ 70 |
| After |
5 p |
1 p |
5 p |
Since Cody had $190 less than Owen, this means Owen had $190 more than Cody.
1 u - 140 = 1 p --- (1)
1 u + 190 + 70 = 5 p
1 u + 260 =
5 p --- (2)
Make p the same.
(1)
x5
5 u - 700 =
5 p --- (3)
(3) = (2)
5 u - 700 = 1 u + 260
5 u - 1 u = 260 + 700
4 u = 960
1 u = 960 ÷ 4 = 240
Total amount that Cody and Owen had
= 1 u + 1 u + 190
= 2 u + 190
= 2 x 240 + 190
= 480 + 190
= $670
Answer(s): $670
