The table shows the number of staplers sold at a bookshop last week.
|
Number of staplers sold |
Per weekday |
5z |
Saturday |
3z + 40 |
Sunday |
3z - 8 |
- What was the total number of staplers sold last week? Express your answer in terms of z the simplest form.
- If z = 23, how many staplers were sold on Sunday?
(a)
Total staplers sold on weekdays
= 5 x 5
z = 25
z Total staplers sold on weekends
= 3
z + 40 + 3
z - 8
= 3
z + 3
z + 40 - 8
= 6
z + 32
Total staplers sold last week
= 25
z + 6
z + 32
= 31
z + 32
(b)
Number of staplers sold on Sunday
= (3 x 23) - 8
= 69 - 8
= 61
Answer(s): (a) 31
z + 32 or 32 + 31
z ; (b) 61