Brandon has $18. Ethan has $4
x more than Brandon. Ian has $2
x less than Ethan.
- Find the amount of money that Ian has in terms of x.
- Find the total amount of money that the three boys have in terms of x.
- If x = 7, how much does Ian have?
(a)
Amount that Brandon has = $18
Amount that Ethan has = $(18 + 4
x)
Amount that Ian has
= 18 + 4
x - 2
x = $(18 + 2
x)
(b)
Total amount that the three boys have
= 18 + 18 + 4
x + 18 + 2
x= 18 + 18 + 18 + 4
x + 2
x = $(54 + 6
x)
(c)
Amount that Ian has
= 18 + 2
x= 18 + 2 x 7
= 18 + 14
= $32
Answer(s): (a) $(18 + 2
x) or $(2
x + 18); (b) $(54 + 6
x) or $(6
x + 54); (c) $32