The table shows the number of files sold at a bookshop last week.
|
Number of files sold |
Per weekday |
6i |
Saturday |
4i + 40 |
Sunday |
3i - 5 |
- What was the total number of files sold last week? Express your answer in terms of i the simplest form.
- If i = 23, how many files were sold on Sunday?
(a)
Total files sold on weekdays
= 5 x 6
i = 30
i Total files sold on weekends
= 4
i + 40 + 3
i - 5
= 4
i + 3
i + 40 - 5
= 7
i + 35
Total files sold last week
= 30
i + 7
i + 35
= 37
i + 35
(b)
Number of files sold on Sunday
= (3 x 23) - 5
= 69 - 5
= 64
Answer(s): (a) 37
i + 35 or 35 + 37
i ; (b) 64