Reggie has $9. Billy has $5
z more than Reggie. Caden has $2
z less than Billy.
- Find the amount of money that Caden has in terms of z.
- Find the total amount of money that the three boys have in terms of z.
- If z = 4, how much does Caden have?
(a)
Amount that Reggie has = $9
Amount that Billy has = $(9 + 5
z)
Amount that Caden has
= 9 + 5
z - 2
z = $(9 + 3
z)
(b)
Total amount that the three boys have
= 9 + 9 + 5
z + 9 + 3
z= 9 + 9 + 9 + 5
z + 3
z = $(27 + 8
z)
(c)
Amount that Caden has
= 9 + 3
z= 9 + 3 x 4
= 9 + 12
= $21
Answer(s): (a) $(9 + 3
z) or $(3
z + 9); (b) $(27 + 8
z) or $(8
z + 27); (c) $21