Mrs Nick paid a total of $46 for 3
s markers and 4 notebooks. Each marker cost $3.
- Express the cost of 1 notebook in terms of s.
- If s = 3, how much did each notebook cost?
(a)
Total amount spent on 3
s markers
= 3
s x 3
= $9
s Total amount spent on 4 notebooks = $(46 - 9
s)
Total amount spent on 1 notebook = $(
46 - 9s4)
(b)
Price of each notebook if
s = 3
= (46 - 9 x 3) ÷ 4
= (46 - 27) ÷ 4
= 19 ÷ 4
= $4.75
Answer(s): (a) $(
46 - 9s4) or $
46 - 9s4; (b) $4.75