The table shows the number of markers sold at a bookshop last week.
|
Number of markers sold |
Per weekday |
5d |
Saturday |
3d + 40 |
Sunday |
3d - 7 |
- What was the total number of markers sold last week? Express your answer in terms of d the simplest form.
- If d = 26, how many markers were sold on Sunday?
(a)
Total markers sold on weekdays
= 5 x 5
d = 25
d Total markers sold on weekends
= 3
d + 40 + 3
d - 7
= 3
d + 3
d + 40 - 7
= 6
d + 33
Total markers sold last week
= 25
d + 6
d + 33
= 31
d + 33
(b)
Number of markers sold on Sunday
= (3 x 26) - 7
= 78 - 7
= 71
Answer(s): (a) 31
d + 33 or 33 + 31
d ; (b) 71