Notes
notes on deriving a number
Content of the notes (1)
Page 1
deriving a simple formula
number of hours (h)
1
2
3
h
cost of hours
1 x 25 = 25
2 x 25 = 50
3 x 25 = 75
h x 25 = 25h
call out charge
50
50
50
50
total cost (c)
£75
£100
£125
25h + 50
answer: C = 25h + 50