The table shows the number of pencils sold at a bookshop last week.
|
Number of pencils sold |
Per weekday |
6s |
Saturday |
3s + 40 |
Sunday |
3s - 5 |
- What was the total number of pencils sold last week? Express your answer in terms of s the simplest form.
- If s = 21, how many pencils were sold on Sunday?
(a)
Total pencils sold on weekdays
= 5 x 6
s = 30
s Total pencils sold on weekends
= 3
s + 40 + 3
s - 5
= 3
s + 3
s + 40 - 5
= 6
s + 35
Total pencils sold last week
= 30
s + 6
s + 35
= 36
s + 35
(b)
Number of pencils sold on Sunday
= (3 x 21) - 5
= 63 - 5
= 58
Answer(s): (a) 36
s + 35 or 35 + 36
s ; (b) 58