The table shows the number of notebooks sold at a bookshop last week.
|
Number of notebooks sold |
Per weekday |
6p |
Saturday |
4p + 40 |
Sunday |
3p - 9 |
- What was the total number of notebooks sold last week? Express your answer in terms of p the simplest form.
- If p = 21, how many notebooks were sold on Sunday?
(a)
Total notebooks sold on weekdays
= 5 x 6
p = 30
p Total notebooks sold on weekends
= 4
p + 40 + 3
p - 9
= 4
p + 3
p + 40 - 9
= 7
p + 31
Total notebooks sold last week
= 30
p + 7
p + 31
= 37
p + 31
(b)
Number of notebooks sold on Sunday
= (3 x 21) - 9
= 63 - 9
= 54
Answer(s): (a) 37
p + 31 or 31 + 37
p ; (b) 54