The area of a rectangle is 54ft^2 and the length of the rectangle is 3ft more than twice the width. find the dimensions of the angle.
Length:?
Width:?

- anonymous

- katieb

I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!

At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga.
Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus.
Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get this expert

answer on brainly

SEE EXPERT ANSWER

Get your **free** account and access **expert** answers to this

and **thousands** of other questions

- anonymous

- anonymous

sorry man i can't help you on this one

- anonymous

aww really?

Looking for something else?

Not the answer you are looking for? Search for more explanations.

## More answers

- anonymous

Do you have any idea how to set it up?

- anonymous

I honestly have no idea lol, that is why I tagged you in it, I've never done this equation before.

- anonymous

maybe factor it

- anonymous

I'm not sure lol

- anonymous

give me a sec

- anonymous

ok i figured it out

- anonymous

so set up an equation for this problem

- anonymous

How would I start that

- anonymous

ok lets use w to represent the unknown

- anonymous

so how do you find the length of a rectangle

- anonymous

L=P/2 * W?

- anonymous

sorry i meant to write area.
How do you find the area of a rectangle

- anonymous

A=wl

- anonymous

correct

- anonymous

so we called the width w. the question says the length is 3 feet more than twice the width.
what would you have to do to W to get that?

- anonymous

put it into a expression maybe?

- anonymous

like a algebraic expression

- anonymous

ya

- anonymous

so...3xn?

- anonymous

something around there

- anonymous

so it says the length is twice the width

- anonymous

we called width w.
so we have 2w

- anonymous

it also says that it's 3 feet more than that. what would you add to 2w to represent that?

- anonymous

2w + ?

- anonymous

2w+3?

- anonymous

correct.

- anonymous

2w+3=54ft^2?

- anonymous

So that represents our length.
What are you missing from that equation?

- anonymous

remember area= L x W

- anonymous

we're missing the width right?

- anonymous

correct, what does the equation look like?

- anonymous

is it going to be the same as the length? the 2w?

- anonymous

I'm not sure :l im very slow haha, I hate math

- anonymous

so we started by saying that w is the width

- anonymous

we multiplied that by 2 and added 3 to represent the length

- anonymous

I was going to say we are going to plug in w but there is nothing to plug in.

- anonymous

54 = (2w+3)w

- anonymous

I solve that right?

- anonymous

ya, do you understand how i got that equation though?

- anonymous

I got 54=5, and yes I understand now how you got the equation

- anonymous

or 54/5

- anonymous

nope

- anonymous

I can't really solve it then? because you add like terms right so 2+3 is 5 and then the 54 is just there.

- anonymous

multiply this out
(2w+3)w

- anonymous

6w

- anonymous

6w^2

- anonymous

nope, do you remember how to expand?

- anonymous

Nope

- anonymous

|dw:1433022042596:dw|

- anonymous

what's w times 2w?

- anonymous

3w^2?

- anonymous

or 2w^2

- anonymous

the only reason why I say that is because sometimes the w could be used as a 1 but I could be wrong

- anonymous

it's 2w^2

- anonymous

|dw:1433022177245:dw|

- anonymous

now what's w times 3?

- anonymous

3w

- anonymous

correct, so we have 2w^2 + 3w = 54

- anonymous

it looks like we have to factor this

- anonymous

so move everything to one side of the equation

- anonymous

Is it -6, an 9/2?

- anonymous

right so is the width -6 or 9/2?

- anonymous

-6?

- anonymous

is it possible to have a negative width?

- anonymous

nope

- anonymous

So what is it?

- anonymous

6?

- anonymous

nope

- anonymous

9/2?

- anonymous

what was the other value you got

- anonymous

9/2 is correct

- anonymous

so the width is 9/2 and the length is -6?

- anonymous

It says that the length is twice the width plus 3 more

- anonymous

so what should the length be?

- anonymous

12?

- anonymous

ok, what's 9/2 times 12?

- anonymous

54

- anonymous

good job

- anonymous

Thank you very much I appreciate you taking the time to work with me.

- anonymous

no problem

Looking for something else?

Not the answer you are looking for? Search for more explanations.