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