SOLUTION: Hi! I am so stuck on this question! A rectangular frame with cross bars is to be made with 100m of angle steel. The width of the frame is x metres and the length of the fram

Question 1021835: Hi!
I am so stuck on this question!
A rectangular frame with cross bars is to be made with 100m of angle steel.
The width of the frame is x metres and the length of the frame is p metres.
a. Show that
b. The frame is t be covered (exactly with no waste) by light aluminium sheeting. IF the area of the sheeting is denoted by A m^2, find an expression for A in terms of x.
Answer by Cromlix(4381) (Show Source): You can put this solution on YOUR website!
Hi there,
Looking at your problem
I think that your rectangular frame
has 3 cross bars all = x
2p = the two lengths.
5x = 3 crossbars + top and bottom bars
2p + 5x = 100
2p = 100 - 5x
p = 100/2 - 5/2x
p = 50 - (5/2)x
............
I am not sure what the
covering entails, but if
it is just the whole area
this would = p * x (* = times)
Area = p * x
x = A/p
or
p = A/x
Hope this helps, but if not
please come back for more help. :-)
RELATED QUESTIONS
I seem to be really stuck on this question. A rectangular picture is to be surrounded... (answered by ankor@dixie-net.com)

Hi, I am working on a project regarding applications of polynomial functions for my... (answered by scott8148)

A museum curator needs to frame a rectangular painting. The painting is 24� x 16�.... (answered by josgarithmetic)

hi there i am stuck on a homework question about ratio's becasue it has a fraction....... (answered by Tatiana_Stebko,stanbon)

Hi, I'm having trouble solving and figuring out what to do with this problem: A... (answered by mananth)

I am buying an "A" frame trailer coupler. I am using it a little different than sometimes (answered by ankor@dixie-net.com)

Hi! I have a question. I am done with all my homework but i am stuck on one question. Do... (answered by Earlsdon)

Hi I know that this is an easy question but I don't get it i've been stuck on this... (answered by fcabanski)

Hi, how do you work out this question? A rectangular painting is to have a total area... (answered by josgarithmetic)