Justin has $14. Mark has $4
x more than Justin. Oliver has $2
x less than Mark.
- Find the amount of money that Oliver 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 Oliver have?
(a)
Amount that Justin has = $14
Amount that Mark has = $(14 + 4
x)
Amount that Oliver has
= 14 + 4
x - 2
x = $(14 + 2
x)
(b)
Total amount that the three boys have
= 14 + 14 + 4
x + 14 + 2
x= 14 + 14 + 14 + 4
x + 2
x = $(42 + 6
x)
(c)
Amount that Oliver has
= 14 + 2
x= 14 + 2 x 7
= 14 + 14
= $28
Answer(s): (a) $(14 + 2
x) or $(2
x + 14); (b) $(42 + 6
x) or $(6
x + 42); (c) $28