Sarah and Olivium went shopping. After Sarah spent $66
g, Olivium had 3 times as much as Sarah. If Sarah had $29
g more than Olivium at first,
- Express the amount of money that Sarah had at first in terms of g.
- If g = 34, find the amount of money that the two lady had left after shopping.
|
Sarah |
Olivium |
Before |
1 u + $66g |
3 u |
Change |
- $66g |
|
After |
1 u |
3 u |
(a)
1 u + 66
g = 3 u + 29
g3 u - 1 u = 66
g - 29
g2 u = 66
g - 29
g = 37
g1 u = 37
g ÷ 2 = 18.5
g Sarah's amount at first
= 1 u + 66
g = 18.5
g + 66
g = $84.5
g (b)
1 u + 3 u = 4 u
4 u = 4 x 18.5
g = 74
g Amount the two lady had left
= 74 x 34
= $2516
Answer(s): (a) $84.5
g; (b) $2516