Ivan has $13. Archie has $5
s more than Ivan. Gabriel has $2
s less than Archie.
- Find the amount of money that Gabriel has in terms of s.
- Find the total amount of money that the three boys have in terms of s.
- If s = 7, how much does Gabriel have?
(a)
Amount that Ivan has = $13
Amount that Archie has = $(13 + 5
s)
Amount that Gabriel has
= 13 + 5
s - 2
s = $(13 + 3
s)
(b)
Total amount that the three boys have
= 13 + 13 + 5
s + 13 + 3
s= 13 + 13 + 13 + 5
s + 3
s = $(39 + 8
s)
(c)
Amount that Gabriel has
= 13 + 3
s= 13 + 3 x 7
= 13 + 21
= $34
Answer(s): (a) $(13 + 3
s) or $(3
s + 13); (b) $(39 + 8
s) or $(8
s + 39); (c) $34