The table shows the number of pens sold at a bookshop last week.
|
Number of pens sold |
Per weekday |
5f |
Saturday |
4f + 40 |
Sunday |
3f - 6 |
- What was the total number of pens sold last week? Express your answer in terms of f the simplest form.
- If f = 30, how many pens were sold on Sunday?
(a)
Total pens sold on weekdays
= 5 x 5
f = 25
f Total pens sold on weekends
= 4
f + 40 + 3
f - 6
= 4
f + 3
f + 40 - 6
= 7
f + 34
Total pens sold last week
= 25
f + 7
f + 34
= 32
f + 34
(b)
Number of pens sold on Sunday
= (3 x 30) - 6
= 90 - 6
= 84
Answer(s): (a) 32
f + 34 or 34 + 32
f ; (b) 84