I have two questions that I am greatly in need of assistance. I took these in a pretest, and cannot for the life of me understand them. :/
If you could please help me step by step, I would be greatly appreciated. Will metal too!
Here they are, simple I know____
The perimeter of a rectangle is 64 units. Can the length x of the rectangle can be 20 units hen its width y is 11 units?
For the second one I started off doing:
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For the first one I did use the formula: p=2l+2w
if the perimeter= 64 units with the width y=11 units then;
substituting those values we get
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Maybe I was doing it wrong when I was doing the formula:
40 * 22
40*22 = 880
Yeah, I still don't understand how you received 352. I'm sorry. :(
I don't disregard that your answer is wrong, I just can't comprehend it. Maybe another way of explaining it?
i made a mistake it shd be
and we want ''l'' so
divide both side by 2 we get
now take away w from both sides wee get
so substituting into that we get
Ah. Okay, now I can see it. I was so focused on trying to use the length that was provided, that it was incorrect. Thank you.
Could you help me on my other question if you have time?
for the second question
-4(x+1)-3=-3(x-4)...just making sure its this ..see u wrote (x-1) when u started it..
Ops, yeah its (x+1) sorry typo
The second step would start out like this: -4x+-4-3=-3x-12
I know that you need to get all the variables on one side of the equation, preferable the left side.
we can start by multiplying out parentheses
add (3x) and (7) to boh sides we get
then divide by -1
You would finally have -1x-7=12
then adding the seven to both sides of the equation.
Finally you would have -1x=19
divide -1x by both sides and get x = -19
Ah, I see the mistake on my part, but thank you so much for your time.
Have a nice night, thank you again! @ LynFran
I made sure I gave you a metal.