The table shows the number of pens sold at a bookshop last week.
|
Number of pens sold |
Per weekday |
5t |
Saturday |
4t + 40 |
Sunday |
3t - 5 |
- What was the total number of pens sold last week? Express your answer in terms of t the simplest form.
- If t = 30, how many pens were sold on Sunday?
(a)
Total pens sold on weekdays
= 5 x 5
t = 25
t Total pens sold on weekends
= 4
t + 40 + 3
t - 5
= 4
t + 3
t + 40 - 5
= 7
t + 35
Total pens sold last week
= 25
t + 7
t + 35
= 32
t + 35
(b)
Number of pens sold on Sunday
= (3 x 30) - 5
= 90 - 5
= 85
Answer(s): (a) 32
t + 35 or 35 + 32
t ; (b) 85