Elyse and Shiyun went shopping. After Elyse spent $59
p, Shiyun had 4 times as much as Elyse. If Elyse had $23
p more than Shiyun at first,
- Express the amount of money that Elyse had at first in terms of p.
- If p = 28, find the amount of money that the two lady had left after shopping.
|
Elyse |
Shiyun |
Before |
1 u + $59p |
4 u |
Change |
- $59p |
|
After |
1 u |
4 u |
(a)
1 u + 59
p = 4 u + 23
p4 u - 1 u = 59
p - 23
p3 u = 59
p - 23
p = 36
p1 u = 36
p ÷ 3 = 12
p Elyse's amount at first
= 1 u + 59
p = 12
p + 59
p = $71
p (b)
1 u + 4 u = 5 u
5 u = 5 x 12
p = 60
p Amount the two lady had left
= 60 x 28
= $1680
Answer(s): (a) $71
p; (b) $1680