Mrs Archie paid a total of $46 for 3
v files and 4 notebooks. Each file cost $3.
- Express the cost of 1 notebook in terms of v.
- If v = 3, how much did each notebook cost?
(a)
Total amount spent on 3
v files
= 3
v x 3
= $9
v Total amount spent on 4 notebooks = $(46 - 9
v)
Total amount spent on 1 notebook = $(
46 - 9v4)
(b)
Price of each notebook if
v = 3
= (46 - 9 x 3) ÷ 4
= (46 - 27) ÷ 4
= 19 ÷ 4
= $4.75
Answer(s): (a) $(
46 - 9v4) or $
46 - 9v4; (b) $4.75