Mrs Archie paid a total of $34 for 2
w files and 8 notebooks. Each file cost $2.
- Express the cost of 1 notebook in terms of w.
- If w = 6, how much did each notebook cost?
(a)
Total amount spent on 2
w files
= 2
w x 2
= $4
w Total amount spent on 8 notebooks = $(34 - 4
w)
Total amount spent on 1 notebook = $(
34 - 4w8)
(b)
Price of each notebook if
w = 6
= (34 - 4 x 6) ÷ 8
= (34 - 24) ÷ 8
= 10 ÷ 8
= $1.25
Answer(s): (a) $(
34 - 4w8) or $
34 - 4w8; (b) $1.25