The table shows the number of pens sold at a bookshop last week.
| |
Number of pens sold |
| Per weekday |
5y |
| Saturday |
2y + 40 |
| Sunday |
3y - 7 |
- What was the total number of pens sold last week? Express your answer in terms of y the simplest form.
- If y = 30, how many pens were sold on Sunday?
(a)
Total pens sold on weekdays
= 5 x 5
y = 25
y Total pens sold on weekends
= 2
y + 40 + 3
y - 7
= 2
y + 3
y + 40 - 7
= 5
y + 33
Total pens sold last week
= 25
y + 5
y + 33
= 30
y + 33
(b)
Number of pens sold on Sunday
= (3 x 30) - 7
= 90 - 7
= 83
Answer(s): (a) 30
y + 33 or 33 + 30
y ; (b) 83
