The table shows the number of files sold at a bookshop last week.
| |
Number of files sold |
| Per weekday |
5x |
| Saturday |
4x + 40 |
| Sunday |
3x - 6 |
- What was the total number of files sold last week? Express your answer in terms of x the simplest form.
- If x = 23, how many files were sold on Sunday?
(a)
Total files sold on weekdays
= 5 x 5
x = 25
x Total files sold on weekends
= 4
x + 40 + 3
x - 6
= 4
x + 3
x + 40 - 6
= 7
x + 34
Total files sold last week
= 25
x + 7
x + 34
= 32
x + 34
(b)
Number of files sold on Sunday
= (3 x 23) - 6
= 69 - 6
= 63
Answer(s): (a) 32
x + 34 or 34 + 32
x ; (b) 63
