The table shows the number of notebooks sold at a bookshop last week.
|
Number of notebooks sold |
Per weekday |
5m |
Saturday |
4m + 40 |
Sunday |
3m - 10 |
- What was the total number of notebooks sold last week? Express your answer in terms of m the simplest form.
- If m = 29, how many notebooks were sold on Sunday?
(a)
Total notebooks sold on weekdays
= 5 x 5
m = 25
m Total notebooks sold on weekends
= 4
m + 40 + 3
m - 10
= 4
m + 3
m + 40 - 10
= 7
m + 30
Total notebooks sold last week
= 25
m + 7
m + 30
= 32
m + 30
(b)
Number of notebooks sold on Sunday
= (3 x 29) - 10
= 87 - 10
= 77
Answer(s): (a) 32
m + 30 or 30 + 32
m ; (b) 77