Kylie and Nicole went shopping. After Kylie spent $76
c, Nicole had 4 times as much as Kylie. If Kylie had $25
c more than Nicole at first,
- Express the amount of money that Kylie had at first in terms of c.
- If c = 19, find the amount of money that the two lady had left after shopping.
|
Kylie |
Nicole |
Before |
1 u + $76c |
4 u |
Change |
- $76c |
|
After |
1 u |
4 u |
(a)
1 u + 76
c = 4 u + 25
c4 u - 1 u = 76
c - 25
c3 u = 76
c - 25
c = 51
c1 u = 51
c ÷ 3 = 17
c Kylie's amount at first
= 1 u + 76
c = 17
c + 76
c = $93
c (b)
1 u + 4 u = 5 u
5 u = 5 x 17
c = 85
c Amount the two lady had left
= 85 x 19
= $1615
Answer(s): (a) $93
c; (b) $1615