The table shows the number of notebooks sold at a bookshop last week.
|
Number of notebooks sold |
Per weekday |
6f |
Saturday |
3f + 40 |
Sunday |
3f - 7 |
- What was the total number of notebooks sold last week? Express your answer in terms of f the simplest form.
- If f = 22, how many notebooks were sold on Sunday?
(a)
Total notebooks sold on weekdays
= 5 x 6
f = 30
f Total notebooks sold on weekends
= 3
f + 40 + 3
f - 7
= 3
f + 3
f + 40 - 7
= 6
f + 33
Total notebooks sold last week
= 30
f + 6
f + 33
= 36
f + 33
(b)
Number of notebooks sold on Sunday
= (3 x 22) - 7
= 66 - 7
= 59
Answer(s): (a) 36
f + 33 or 33 + 36
f ; (b) 59