The table shows the number of files sold at a bookshop last week.
|
Number of files sold |
Per weekday |
5v |
Saturday |
3v + 40 |
Sunday |
3v - 8 |
- What was the total number of files sold last week? Express your answer in terms of v the simplest form.
- If v = 28, how many files were sold on Sunday?
(a)
Total files sold on weekdays
= 5 x 5
v = 25
v Total files sold on weekends
= 3
v + 40 + 3
v - 8
= 3
v + 3
v + 40 - 8
= 6
v + 32
Total files sold last week
= 25
v + 6
v + 32
= 31
v + 32
(b)
Number of files sold on Sunday
= (3 x 28) - 8
= 84 - 8
= 76
Answer(s): (a) 31
v + 32 or 32 + 31
v ; (b) 76