The table shows the number of pencils sold at a bookshop last week.
|
Number of pencils sold |
Per weekday |
5c |
Saturday |
3c + 40 |
Sunday |
3c - 8 |
- What was the total number of pencils sold last week? Express your answer in terms of c the simplest form.
- If c = 20, how many pencils were sold on Sunday?
(a)
Total pencils sold on weekdays
= 5 x 5
c = 25
c Total pencils sold on weekends
= 3
c + 40 + 3
c - 8
= 3
c + 3
c + 40 - 8
= 6
c + 32
Total pencils sold last week
= 25
c + 6
c + 32
= 31
c + 32
(b)
Number of pencils sold on Sunday
= (3 x 20) - 8
= 60 - 8
= 52
Answer(s): (a) 31
c + 32 or 32 + 31
c ; (b) 52