Riordan has $10. Jeremy has $4
s more than Riordan. Mark has $2
s less than Jeremy.
- Find the amount of money that Mark has in terms of s.
- Find the total amount of money that the three boys have in terms of s.
- If s = 6, how much does Mark have?
(a)
Amount that Riordan has = $10
Amount that Jeremy has = $(10 + 4
s)
Amount that Mark has
= 10 + 4
s - 2
s = $(10 + 2
s)
(b)
Total amount that the three boys have
= 10 + 10 + 4
s + 10 + 2
s= 10 + 10 + 10 + 4
s + 2
s = $(30 + 6
s)
(c)
Amount that Mark has
= 10 + 2
s= 10 + 2 x 6
= 10 + 12
= $22
Answer(s): (a) $(10 + 2
s) or $(2
s + 10); (b) $(30 + 6
s) or $(6
s + 30); (c) $22