Raeann and Olivium went shopping. After Raeann spent $87
g, Olivium had 3 times as much as Raeann. If Raeann had $27
g more than Olivium at first,
- Express the amount of money that Raeann had at first in terms of g.
- If g = 29, find the amount of money that the two lady had left after shopping.
|
Raeann |
Olivium |
Before |
1 u + $87g |
3 u |
Change |
- $87g |
|
After |
1 u |
3 u |
(a)
1 u + 87
g = 3 u + 27
g3 u - 1 u = 87
g - 27
g2 u = 87
g - 27
g = 60
g1 u = 60
g ÷ 2 = 30
g Raeann's amount at first
= 1 u + 87
g = 30
g + 87
g = $117
g (b)
1 u + 3 u = 4 u
4 u = 4 x 30
g = 120
g Amount the two lady had left
= 120 x 29
= $3480
Answer(s): (a) $117
g; (b) $3480