Answer:
Sihui has $4 and Mark has $12.
Step-by-step explanation:
Let the amount that Sihui has be s.
Let the amount that Mark has be m.
Sihui and Mark have $16 altogether. This means that:
s + m = 16
If Sihui has $2 more, she will have half as much as Mark. This means that:
s + 2 = m/2
=> s = m/2 - 2
By process of elimination, put this value of s in the first equation:
m/2 - 2 + m = 16
=> 3m/2 = 16 + 2 = 18
m = (18 * 2) / 3
m = 36 / 3 = $12
=> s = 12/2 - 2
s = 6 - 2 = $4
Sihui has $4 and Mark has $12.
