Xavier has $19. Will has $5
z more than Xavier. Justin has $2
z less than Will.
- Find the amount of money that Justin 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 Justin have?
(a)
Amount that Xavier has = $19
Amount that Will has = $(19 + 5
z)
Amount that Justin has
= 19 + 5
z - 2
z = $(19 + 3
z)
(b)
Total amount that the three boys have
= 19 + 19 + 5
z + 19 + 3
z= 19 + 19 + 19 + 5
z + 3
z = $(57 + 8
z)
(c)
Amount that Justin has
= 19 + 3
z= 19 + 3 x 4
= 19 + 12
= $31
Answer(s): (a) $(19 + 3
z) or $(3
z + 19); (b) $(57 + 8
z) or $(8
z + 57); (c) $31