The table shows the number of files sold at a bookshop last week.
|
Number of files sold |
Per weekday |
5e |
Saturday |
4e + 40 |
Sunday |
3e - 9 |
- What was the total number of files sold last week? Express your answer in terms of e the simplest form.
- If e = 23, how many files were sold on Sunday?
(a)
Total files sold on weekdays
= 5 x 5
e = 25
e Total files sold on weekends
= 4
e + 40 + 3
e - 9
= 4
e + 3
e + 40 - 9
= 7
e + 31
Total files sold last week
= 25
e + 7
e + 31
= 32
e + 31
(b)
Number of files sold on Sunday
= (3 x 23) - 9
= 69 - 9
= 60
Answer(s): (a) 32
e + 31 or 31 + 32
e ; (b) 60