Tiffany and Lynn went shopping. After Tiffany spent $51
s, Lynn had 3 times as much as Tiffany. If Tiffany had $27
s more than Lynn at first,
- Express the amount of money that Tiffany had at first in terms of s.
- If s = 26, find the amount of money that the two lady had left after shopping.
|
Tiffany |
Lynn |
Before |
1 u + $51s |
3 u |
Change |
- $51s |
|
After |
1 u |
3 u |
(a)
1 u + 51
s = 3 u + 27
s3 u - 1 u = 51
s - 27
s2 u = 51
s - 27
s = 24
s1 u = 24
s ÷ 2 = 12
s Tiffany's amount at first
= 1 u + 51
s = 12
s + 51
s = $63
s (b)
1 u + 3 u = 4 u
4 u = 4 x 12
s = 48
s Amount the two lady had left
= 48 x 26
= $1248
Answer(s): (a) $63
s; (b) $1248