The table shows the number of files sold at a bookshop last week.
|
Number of files sold |
Per weekday |
6h |
Saturday |
2h + 40 |
Sunday |
3h - 9 |
- What was the total number of files sold last week? Express your answer in terms of h the simplest form.
- If h = 20, how many files were sold on Sunday?
(a)
Total files sold on weekdays
= 5 x 6
h = 30
h Total files sold on weekends
= 2
h + 40 + 3
h - 9
= 2
h + 3
h + 40 - 9
= 5
h + 31
Total files sold last week
= 30
h + 5
h + 31
= 35
h + 31
(b)
Number of files sold on Sunday
= (3 x 20) - 9
= 60 - 9
= 51
Answer(s): (a) 35
h + 31 or 31 + 35
h ; (b) 51