The table shows the number of pens sold at a bookshop last week.
|
Number of pens sold |
Per weekday |
5v |
Saturday |
3v + 40 |
Sunday |
3v - 7 |
- What was the total number of pens sold last week? Express your answer in terms of v the simplest form.
- If v = 20, how many pens were sold on Sunday?
(a)
Total pens sold on weekdays
= 5 x 5
v = 25
v Total pens sold on weekends
= 3
v + 40 + 3
v - 7
= 3
v + 3
v + 40 - 7
= 6
v + 33
Total pens sold last week
= 25
v + 6
v + 33
= 31
v + 33
(b)
Number of pens sold on Sunday
= (3 x 20) - 7
= 60 - 7
= 53
Answer(s): (a) 31
v + 33 or 33 + 31
v ; (b) 53