The table shows the number of pencils sold at a bookshop last week.
|
Number of pencils sold |
Per weekday |
6x |
Saturday |
2x + 40 |
Sunday |
3x - 9 |
- What was the total number of pencils sold last week? Express your answer in terms of x the simplest form.
- If x = 25, how many pencils were sold on Sunday?
(a)
Total pencils sold on weekdays
= 5 x 6
x = 30
x Total pencils sold on weekends
= 2
x + 40 + 3
x - 9
= 2
x + 3
x + 40 - 9
= 5
x + 31
Total pencils sold last week
= 30
x + 5
x + 31
= 35
x + 31
(b)
Number of pencils sold on Sunday
= (3 x 25) - 9
= 75 - 9
= 66
Answer(s): (a) 35
x + 31 or 31 + 35
x ; (b) 66