Sabrina and Jade went shopping. After Sabrina spent $62
c, Jade had 3 times as much as Sabrina. If Sabrina had $24
c more than Jade at first,
- Express the amount of money that Sabrina had at first in terms of c.
- If c = 36, find the amount of money that the two lady had left after shopping.
|
Sabrina |
Jade |
Before |
1 u + $62c |
3 u |
Change |
- $62c |
|
After |
1 u |
3 u |
(a)
1 u + 62
c = 3 u + 24
c3 u - 1 u = 62
c - 24
c2 u = 62
c - 24
c = 38
c1 u = 38
c ÷ 2 = 19
c Sabrina's amount at first
= 1 u + 62
c = 19
c + 62
c = $81
c (b)
1 u + 3 u = 4 u
4 u = 4 x 19
c = 76
c Amount the two lady had left
= 76 x 36
= $2736
Answer(s): (a) $81
c; (b) $2736