Ethan has $12. Bobby has $5
f more than Ethan. Ian has $2
f less than Bobby.
- Find the amount of money that Ian has in terms of f.
- Find the total amount of money that the three boys have in terms of f.
- If f = 5, how much does Ian have?
(a)
Amount that Ethan has = $12
Amount that Bobby has = $(12 + 5
f)
Amount that Ian has
= 12 + 5
f - 2
f = $(12 + 3
f)
(b)
Total amount that the three boys have
= 12 + 12 + 5
f + 12 + 3
f= 12 + 12 + 12 + 5
f + 3
f = $(36 + 8
f)
(c)
Amount that Ian has
= 12 + 3
f= 12 + 3 x 5
= 12 + 15
= $27
Answer(s): (a) $(12 + 3
f) or $(3
f + 12); (b) $(36 + 8
f) or $(8
f + 36); (c) $27