Eric has $18. Vincent has $5
c more than Eric. Ethan has $2
c less than Vincent.
- Find the amount of money that Ethan has in terms of c.
- Find the total amount of money that the three boys have in terms of c.
- If c = 7, how much does Ethan have?
(a)
Amount that Eric has = $18
Amount that Vincent has = $(18 + 5
c)
Amount that Ethan has
= 18 + 5
c - 2
c = $(18 + 3
c)
(b)
Total amount that the three boys have
= 18 + 18 + 5
c + 18 + 3
c= 18 + 18 + 18 + 5
c + 3
c = $(54 + 8
c)
(c)
Amount that Ethan has
= 18 + 3
c= 18 + 3 x 7
= 18 + 21
= $39
Answer(s): (a) $(18 + 3
c) or $(3
c + 18); (b) $(54 + 8
c) or $(8
c + 54); (c) $39