The table shows the number of pens sold at a bookshop last week.
| |
Number of pens sold |
| Per weekday |
6y |
| Saturday |
3y + 40 |
| Sunday |
3y - 5 |
- What was the total number of pens sold last week? Express your answer in terms of y the simplest form.
- If y = 28, how many pens were sold on Sunday?
(a)
Total pens sold on weekdays
= 5 x 6
y = 30
y Total pens sold on weekends
= 3
y + 40 + 3
y - 5
= 3
y + 3
y + 40 - 5
= 6
y + 35
Total pens sold last week
= 30
y + 6
y + 35
= 36
y + 35
(b)
Number of pens sold on Sunday
= (3 x 28) - 5
= 84 - 5
= 79
Answer(s): (a) 36
y + 35 or 35 + 36
y ; (b) 79
