Simon has $17. Mark has $4
a more than Simon. Sam has $2
a less than Mark.
- Find the amount of money that Sam has in terms of a.
- Find the total amount of money that the three boys have in terms of a.
- If a = 5, how much does Sam have?
(a)
Amount that Simon has = $17
Amount that Mark has = $(17 + 4
a)
Amount that Sam has
= 17 + 4
a - 2
a = $(17 + 2
a)
(b)
Total amount that the three boys have
= 17 + 17 + 4
a + 17 + 2
a= 17 + 17 + 17 + 4
a + 2
a = $(51 + 6
a)
(c)
Amount that Sam has
= 17 + 2
a= 17 + 2 x 5
= 17 + 10
= $27
Answer(s): (a) $(17 + 2
a) or $(2
a + 17); (b) $(51 + 6
a) or $(6
a + 51); (c) $27