Emma and Ivory went shopping. After Emma spent $69
e, Ivory had 3 times as much as Emma. If Emma had $23
e more than Ivory at first,
- Express the amount of money that Emma had at first in terms of e.
- If e = 34, find the amount of money that the two lady had left after shopping.
|
Emma |
Ivory |
Before |
1 u + $69e |
3 u |
Change |
- $69e |
|
After |
1 u |
3 u |
(a)
1 u + 69
e = 3 u + 23
e3 u - 1 u = 69
e - 23
e2 u = 69
e - 23
e = 46
e1 u = 46
e ÷ 2 = 23
e Emma's amount at first
= 1 u + 69
e = 23
e + 69
e = $92
e (b)
1 u + 3 u = 4 u
4 u = 4 x 23
e = 92
e Amount the two lady had left
= 92 x 34
= $3128
Answer(s): (a) $92
e; (b) $3128