The table shows the number of pens sold at a bookshop last week.
|
Number of pens sold |
Per weekday |
5w |
Saturday |
2w + 40 |
Sunday |
3w - 7 |
- What was the total number of pens sold last week? Express your answer in terms of w the simplest form.
- If w = 27, how many pens were sold on Sunday?
(a)
Total pens sold on weekdays
= 5 x 5
w = 25
w Total pens sold on weekends
= 2
w + 40 + 3
w - 7
= 2
w + 3
w + 40 - 7
= 5
w + 33
Total pens sold last week
= 25
w + 5
w + 33
= 30
w + 33
(b)
Number of pens sold on Sunday
= (3 x 27) - 7
= 81 - 7
= 74
Answer(s): (a) 30
w + 33 or 33 + 30
w ; (b) 74