The table shows the number of pens sold at a bookshop last week.
|
Number of pens sold |
Per weekday |
6c |
Saturday |
2c + 40 |
Sunday |
3c - 9 |
- What was the total number of pens sold last week? Express your answer in terms of c the simplest form.
- If c = 24, how many pens were sold on Sunday?
(a)
Total pens sold on weekdays
= 5 x 6
c = 30
c Total pens sold on weekends
= 2
c + 40 + 3
c - 9
= 2
c + 3
c + 40 - 9
= 5
c + 31
Total pens sold last week
= 30
c + 5
c + 31
= 35
c + 31
(b)
Number of pens sold on Sunday
= (3 x 24) - 9
= 72 - 9
= 63
Answer(s): (a) 35
c + 31 or 31 + 35
c ; (b) 63