Vincent has $20. Elijah has $5
r more than Vincent. Tommy has $2
r less than Elijah.
- Find the amount of money that Tommy has in terms of r.
- Find the total amount of money that the three boys have in terms of r.
- If r = 5, how much does Tommy have?
(a)
Amount that Vincent has = $20
Amount that Elijah has = $(20 + 5
r)
Amount that Tommy has
= 20 + 5
r - 2
r = $(20 + 3
r)
(b)
Total amount that the three boys have
= 20 + 20 + 5
r + 20 + 3
r= 20 + 20 + 20 + 5
r + 3
r = $(60 + 8
r)
(c)
Amount that Tommy has
= 20 + 3
r= 20 + 3 x 5
= 20 + 15
= $35
Answer(s): (a) $(20 + 3
r) or $(3
r + 20); (b) $(60 + 8
r) or $(8
r + 60); (c) $35