The table shows the number of staplers sold at a bookshop last week.
| |
Number of staplers sold |
| Per weekday |
5a |
| Saturday |
4a + 40 |
| Sunday |
3a - 6 |
- What was the total number of staplers sold last week? Express your answer in terms of a the simplest form.
- If a = 20, how many staplers were sold on Sunday?
(a)
Total staplers sold on weekdays
= 5 x 5
a = 25
a Total staplers sold on weekends
= 4
a + 40 + 3
a - 6
= 4
a + 3
a + 40 - 6
= 7
a + 34
Total staplers sold last week
= 25
a + 7
a + 34
= 32
a + 34
(b)
Number of staplers sold on Sunday
= (3 x 20) - 6
= 60 - 6
= 54
Answer(s): (a) 32
a + 34 or 34 + 32
a ; (b) 54
