The table shows the number of pens sold at a bookshop last week.
|
Number of pens sold |
Per weekday |
6b |
Saturday |
3b + 40 |
Sunday |
3b - 8 |
- What was the total number of pens sold last week? Express your answer in terms of b the simplest form.
- If b = 25, how many pens were sold on Sunday?
(a)
Total pens sold on weekdays
= 5 x 6
b = 30
b Total pens sold on weekends
= 3
b + 40 + 3
b - 8
= 3
b + 3
b + 40 - 8
= 6
b + 32
Total pens sold last week
= 30
b + 6
b + 32
= 36
b + 32
(b)
Number of pens sold on Sunday
= (3 x 25) - 8
= 75 - 8
= 67
Answer(s): (a) 36
b + 32 or 32 + 36
b ; (b) 67