The table shows the number of notebooks sold at a bookshop last week.
|
Number of notebooks sold |
Per weekday |
5x |
Saturday |
3x + 40 |
Sunday |
3x - 8 |
- What was the total number of notebooks sold last week? Express your answer in terms of x the simplest form.
- If x = 27, how many notebooks were sold on Sunday?
(a)
Total notebooks sold on weekdays
= 5 x 5
x = 25
x Total notebooks sold on weekends
= 3
x + 40 + 3
x - 8
= 3
x + 3
x + 40 - 8
= 6
x + 32
Total notebooks sold last week
= 25
x + 6
x + 32
= 31
x + 32
(b)
Number of notebooks sold on Sunday
= (3 x 27) - 8
= 81 - 8
= 73
Answer(s): (a) 31
x + 32 or 32 + 31
x ; (b) 73