Min and Barbara went shopping. After Min spent $88
w, Barbara had 3 times as much as Min. If Min had $26
w more than Barbara at first,
- Express the amount of money that Min had at first in terms of w.
- If w = 36, find the amount of money that the two lady had left after shopping.
|
Min |
Barbara |
Before |
1 u + $88w |
3 u |
Change |
- $88w |
|
After |
1 u |
3 u |
(a)
1 u + 88
w = 3 u + 26
w3 u - 1 u = 88
w - 26
w2 u = 88
w - 26
w = 62
w1 u = 62
w ÷ 2 = 31
w Min's amount at first
= 1 u + 88
w = 31
w + 88
w = $119
w (b)
1 u + 3 u = 4 u
4 u = 4 x 31
w = 124
w Amount the two lady had left
= 124 x 36
= $4464
Answer(s): (a) $119
w; (b) $4464