Tutors Answer Your Questions about Linear-systems (FREE)
Question 55056: Hi, the question I have is
a manufacturer of tv dinners has monthly revenue of R= -q^2+25q
R is revenue in hundreds of dollars when q dinners are produced.
Cost function is C=4q+40 where C is also in hundreds of dollars.
Manufacturer is limited to producing 2500 dinners per month.
Solve the equations and use a graph to show how manufacturer can operate a profit.
To solve the equations would I have 2500= (-q^2+25q) - (4q+40) since profit is cost-revenue.
So then I have 2500= -q^2 + 25q -4q -40
2500 = -q^2 + 21q -40
2500+40 = -q^2 +21q
2540 = -q^2 +21q
equation to make profit would be -q^2 + 21q - 2540
Then do i find points from this equation to graph it??
I really have no idea and am working with a guess.
Tahnks for any help you could possibly give me!!
Click here to see answer by stanbon(75887)  |
Question 55054: Hi, I have the following question and I don't know what to do.
It is the demand for goods is p^2 + q^2 = 169 where p is price and q is quantity. The supply equation is p = q + 7.
What are the equilibrium price and quantity?
I'm unsure but i'm assuming that equilibrium is where supply equals demand
but the demand equation has roots, so would it be p+q= square root of 169
then that equals p-q-7.
But i still from that cannot get a price for p and a price for q.
I'm extremely stuck and any help would be greatly appreciated.
Click here to see answer by Hook(36) |
Question 55257: write the slope-y-intercept equation form of the line which has slope 2/3 and passes through the point: (-3,3)
write the point-slope equation form of the line which passes through 2 points: (-9,0), (-5,3)
write the general equation form of the line which passes through the 2 points:(1,2), (6,7)
Click here to see answer by venugopalramana(3286) |
Question 42919: More important than telling me what the solution is, is telling me how, in simple (non-textbook, complicated words) terms how to solve problems such as these. I read and re-read the chapters that explain this problem but it is way over my head and I am getting physically ill from the stress. Please help?!?!?
Thank you so much,
G. I. Archer
Click here to see answer by stanbon(75887) |
Question 55956: Heres the problem, Sergio sells a mixture or Virginia peanuts and Spanish peanuts for $3.40 per pound. To make the mixture, he uses Virginia peanuts that cost $3.50 per pound and Spanish peanuts that cost $3 per pund. He mixes 10 pounds at a time. (a)How many pounds or Virginia peanuts does Sergio use? (b)How many pounds Spanish peanuts does Sergio use?
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 56258: A company that manufactures bikes has a fixed cost of $100.00. It costs $100.00 to product each bike. The selling price per bike is $300.00
1. write the cost function, C
2. write the revenu function, R
3. determine the breat-even point. Describe what this means.
Click here to see answer by funmath(2933) |
Question 56258: A company that manufactures bikes has a fixed cost of $100.00. It costs $100.00 to product each bike. The selling price per bike is $300.00
1. write the cost function, C
2. write the revenu function, R
3. determine the breat-even point. Describe what this means.
Click here to see answer by Edwin McCravy(20056)  |
Question 56277: A company that manufactures bikes has a fixed cost of $100,000. It costs $100.00 to product each bike. The selling price per bike is $300.00
1. write the cost function, C
2. write the revenu function, R
3. determine the breat-even point. Describe what this means.
you guys were right, i DID type the fixed cost wrong lol, thanks for your help!
Click here to see answer by stanbon(75887) |
Question 48127: We were told to solve these systems by graphing but, on the graph he has a place for six points it is mapped out as:
x y1 y2
0 0 0
0 0 0
My first problem is x + 2y = 4
x + 2y = -2
My solutions were x = (0,2) (4,0)
y = (-4,1)(0.-4)
How do i graph this where do I place the numbers on the graph.
Click here to see answer by rchill(405) |
Question 56573: plese help me out with this. Im totally confused on what to do. Heres the problem- An express train travels 80km per hour from Ironton to Wildwood. A local train, traveling at 48km per hour, takes 2 hours longer for the same trip. How far apart are Ironton and Wildwood?
Click here to see answer by tutorcecilia(2152)  |
Question 56573: plese help me out with this. Im totally confused on what to do. Heres the problem- An express train travels 80km per hour from Ironton to Wildwood. A local train, traveling at 48km per hour, takes 2 hours longer for the same trip. How far apart are Ironton and Wildwood?
Click here to see answer by ankor@dixie-net.com(22740) |
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