Wesley had $140 less than Tommy. If Tommy spends $140 and Wesley's mother gave Wesley $1120, Tommy will have
16 as much money as Wesley. How much money did Wesley and Tommy have?
| |
Make p the same
(1)x6 = (3) |
Wesley
(1) |
Tommy
(2) |
| Before |
6 u |
1 u |
1 u + 140 |
| Change |
- 840 |
- 140 |
+ 1120 |
| After |
6 p |
1 p |
6 p |
Since Wesley had $140 less than Tommy, this means Tommy had $140 more than Wesley.
1 u - 140 = 1 p --- (1)
1 u + 140 + 1120 = 6 p
1 u + 1260 =
6 p --- (2)
Make p the same.
(1)
x6
6 u - 840 =
6 p --- (3)
(3) = (2)
6 u - 840 = 1 u + 1260
6 u - 1 u = 1260 + 840
5 u = 2100
1 u = 2100 ÷ 5 = 420
Total amount that Wesley and Tommy had
= 1 u + 1 u + 140
= 2 u + 140
= 2 x 420 + 140
= 840 + 140
= $980
Answer(s): $980
