So, let's say that I have 3 bills: a 50 dollar bill, a 100 dollar bill and 1 dollar bill.
I need to buy 9 pens for my friends, and each of the pens costs 4.34 dollars.
I want to know if I can just take the 50 dollar bill, since I'm not too comfortable to carry the 100 dollar bill the whole day.
A quick estiate tells me that 10 times 5 is 50, and since both numbers are less, then in fact, 50 dollar bill will be enough!
Answer:
- Cost is Increasing at a rate of 20,000 per week
- Revenue is decreasing at a rate of 100,000 per week
- Profit is decreasing at a rate of 120,000 per week
Step-by-step explanation:
The cost, revenue, and profit equations for a company manufacturing calculators are given below:
- Cost, C=90000+40x
- Revenue,

- Profit = R - C
When Production output x=4000
<u />
<u>Change in Cost</u>
Cost, C=90000+40x

<u>Change in Revenue</u>

<u>Change in Profit</u>

Therefore, when production output is 4000 and increasing at a rate of 500 calculators per week,
- Cost is Increasing at a rate of 20,000 per week
- Revenue is decreasing at a rate of 100,000 per week
- Profit is decreasing at a rate of 120,000 per week