Wendy and Roshel went shopping. After Wendy spent $55
g, Roshel had 4 times as much as Wendy. If Wendy had $28
g more than Roshel at first,
- Express the amount of money that Wendy had at first in terms of g.
- If g = 27, find the amount of money that the two lady had left after shopping.
|
Wendy |
Roshel |
Before |
1 u + $55g |
4 u |
Change |
- $55g |
|
After |
1 u |
4 u |
(a)
1 u + 55
g = 4 u + 28
g4 u - 1 u = 55
g - 28
g3 u = 55
g - 28
g = 27
g1 u = 27
g ÷ 3 = 9
g Wendy's amount at first
= 1 u + 55
g = 9
g + 55
g = $64
g (b)
1 u + 4 u = 5 u
5 u = 5 x 9
g = 45
g Amount the two lady had left
= 45 x 27
= $1215
Answer(s): (a) $64
g; (b) $1215