The table shows the number of pencils sold at a bookshop last week.
| |
Number of pencils sold |
| Per weekday |
6j |
| Saturday |
4j + 40 |
| Sunday |
3j - 9 |
- What was the total number of pencils sold last week? Express your answer in terms of j the simplest form.
- If j = 27, how many pencils were sold on Sunday?
(a)
Total pencils sold on weekdays
= 5 x 6
j = 30
j Total pencils sold on weekends
= 4
j + 40 + 3
j - 9
= 4
j + 3
j + 40 - 9
= 7
j + 31
Total pencils sold last week
= 30
j + 7
j + 31
= 37
j + 31
(b)
Number of pencils sold on Sunday
= (3 x 27) - 9
= 81 - 9
= 72
Answer(s): (a) 37
j + 31 or 31 + 37
j ; (b) 72
