A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
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?
Second_
4(x+1)3=3(x4)
For the second one I started off doing:
4(x1)3=3(x4)
4x4 3=3x12
+3x +3x
1x43=12
+4 +4
1x3=12
+3 +3
1x=12
1x 1x
anonymous
 one year ago
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? Second_ 4(x+1)3=3(x4) For the second one I started off doing: 4(x1)3=3(x4) 4x4 3=3x12 +3x +3x 1x43=12 +4 +4 1x3=12 +3 +3 1x=12 1x 1x

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0For the first one I did use the formula: p=2l+2w

LynFran
 one year ago
Best ResponseYou've already chosen the best response.2if the perimeter= 64 units with the width y=11 units then; length=(p/2)width so, x=(p/2)y substituting those values we get x= (64/2)(11) x=?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Maybe I was doing it wrong when I was doing the formula: p=2l*2w 64=(2*20)*(2*11) 40 * 22 40*22 = 880

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Yeah, I still don't understand how you received 352. I'm sorry. :(

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I don't disregard that your answer is wrong, I just can't comprehend it. Maybe another way of explaining it?

LynFran
 one year ago
Best ResponseYou've already chosen the best response.2i made a mistake it shd be p=2(l+w) and we want ''l'' so divide both side by 2 we get p/2=l+w now take away w from both sides wee get (p/2)w=l

LynFran
 one year ago
Best ResponseYou've already chosen the best response.2so substituting into that we get (64/2)11=length

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ah. 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.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Could you help me on my other question if you have time?

LynFran
 one year ago
Best ResponseYou've already chosen the best response.2for the second question 4(x+1)3=3(x4)...just making sure its this ..see u wrote (x1) when u started it..

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ops, yeah its (x+1) sorry typo

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The second step would start out like this: 4x+43=3x12 I know that you need to get all the variables on one side of the equation, preferable the left side.

LynFran
 one year ago
Best ResponseYou've already chosen the best response.2ok so 4(x+1)3=3(x4) we can start by multiplying out parentheses so 4x43=3x+12 simplify 4x7=3x+12 add (3x) and (7) to boh sides we get 4x+3x=12+7 simplify x=19 then divide by 1 x=19

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Okay: You would finally have 1x7=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.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Have a nice night, thank you again! @ LynFran I made sure I gave you a metal.
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.