The table shows the number of markers sold at a bookshop last week.
|
Number of markers sold |
Per weekday |
6r |
Saturday |
2r + 40 |
Sunday |
3r - 7 |
- What was the total number of markers sold last week? Express your answer in terms of r the simplest form.
- If r = 27, how many markers were sold on Sunday?
(a)
Total markers sold on weekdays
= 5 x 6
r = 30
r Total markers sold on weekends
= 2
r + 40 + 3
r - 7
= 2
r + 3
r + 40 - 7
= 5
r + 33
Total markers sold last week
= 30
r + 5
r + 33
= 35
r + 33
(b)
Number of markers sold on Sunday
= (3 x 27) - 7
= 81 - 7
= 74
Answer(s): (a) 35
r + 33 or 33 + 35
r ; (b) 74