The table shows the number of pencils sold at a bookshop last week.
|
Number of pencils sold |
Per weekday |
5c |
Saturday |
2c + 40 |
Sunday |
3c - 5 |
- What was the total number of pencils sold last week? Express your answer in terms of c the simplest form.
- If c = 21, how many pencils were sold on Sunday?
(a)
Total pencils sold on weekdays
= 5 x 5
c = 25
c Total pencils sold on weekends
= 2
c + 40 + 3
c - 5
= 2
c + 3
c + 40 - 5
= 5
c + 35
Total pencils sold last week
= 25
c + 5
c + 35
= 30
c + 35
(b)
Number of pencils sold on Sunday
= (3 x 21) - 5
= 63 - 5
= 58
Answer(s): (a) 30
c + 35 or 35 + 30
c ; (b) 58