Tutors Answer Your Questions about Systems-of-equations (FREE)
Question 58273: The length of a rectangle is 12 cm more than its width. A second rectangle is 3cm shorter in width and 5cm longer in length than the first rectangle, and has a perimeter of 68cm. What are the dimensions of this second rectangle.
So far, I got first rectangle is L=w+12 and then got confused. I know the second rectangle 2L+2W=68. This question is not from a textbook, but from a worksheet.
Click here to see answer by faceoff57(82)  |
Question 58294: Can someone help me on this problem?
I need to solve the following system by using either addition or substitution. If a unique solution does not exist, I have to state whether the system is dependent or inconsistent.
10x + 2y -= 7
y = -5x + 3
Thanks,
Ashley
Click here to see answer by venugopalramana(3286) |
Question 58448: For every 20ft. of chain link fencing, 80 support posts are used. How many suport posts will be needed for 45ft of chain link fence? Write the proportion that could be used to solve this problem, using the variable x
thanks
Click here to see answer by Nate(3500) |
Question 58560: Please help me. I got 12 for part a but my friend came up with -2.5 and neither of us can graph the function can you show us how please and thank you. Also we needed help in finding the last part c.
An open box top is to be constructed from a 4 by 6 foot rectangular cardboard by cutting out equal squares at each corner and then folding up the flaps. Let x denote the length of each side of the square to be cut out.
a) Find the function V that represents the volume of the box in terms of x.
Show work here:
b) Graph this function and show the graph over the valid range of the variable x
c) Using the graph, what is the value of x that will produce the maximum volume?
Show work here:
Click here to see answer by Earlsdon(6287) |
Question 58822: Can someone please help me graph this problem?
A small firm produces both AM and AM/FM car radios. The AM radios take 15 hto produce, and the AM/FM radios take 20 h. The number of production hours is limited to 300 h per week. The plant's capacity is limited to a total of 18 radios per week, and existing orders require that at least 4 AM radios and at least 3 AM/FM radios be produced per week. I need to write a systems of inequalities representing this situation. Then, I need to draw a graph of the feasible region given these conditions, in which x is the number of AM radios and y the number of AM/FM radios.
I have to send this through the computer and I am having problems with making the graph. Can someone help me on this?
I sure would appreciate it.
Sher
Click here to see answer by ankor@dixie-net.com(15656)  |
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