One pen costs $
p. One marker costs $(
p + 15). One colouring book costs $3
p.
- Nick bought 6 pens, 3 markers and 1 colouring book. How much did he spend? Simplify your answer in terms of p.
- If p = 20, how much did Nick spend altogether?
(a)
Cost of 6 pens = 6 x
p = $6
p Cost of 3 markers = 3 x (
p + 15) = $(3
p + 45)
Cost of 1 colouring book = $3
p Total amount that he spent
= 6
p + 3
p + 45 + 3
p= 6
p + 3
p + 3
p + 45
= $(12
p + 45)
(b)
If
p = 20,
total amount that he spent
= 12
p + 45
= (12 x 20) + 45
= 240 + 45
= $285
Answer(s): (a) $(12
p + 45) or $(45 + 12
p); (b) $285