The table shows the number of pens sold at a bookshop last week.
|
Number of pens sold |
Per weekday |
6f |
Saturday |
4f + 40 |
Sunday |
3f - 7 |
- What was the total number of pens sold last week? Express your answer in terms of f the simplest form.
- If f = 27, how many pens were sold on Sunday?
(a)
Total pens sold on weekdays
= 5 x 6
f = 30
f Total pens sold on weekends
= 4
f + 40 + 3
f - 7
= 4
f + 3
f + 40 - 7
= 7
f + 33
Total pens sold last week
= 30
f + 7
f + 33
= 37
f + 33
(b)
Number of pens sold on Sunday
= (3 x 27) - 7
= 81 - 7
= 74
Answer(s): (a) 37
f + 33 or 33 + 37
f ; (b) 74