Question

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:?

Answer 1

@10115658

Answer 2

sorry man i can't help you on this one

Answer 3

aww really?

Answer 4

Do you have any idea how to set it up?

Answer 5

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

Answer 6

maybe factor it

Answer 7

I'm not sure lol

Answer 8

give me a sec

Answer 9

ok i figured it out

Answer 10

so set up an equation for this problem

Answer 11

How would I start that

Answer 12

ok lets use w to represent the unknown

Answer 13

so how do you find the length of a rectangle

Answer 14

L=P/2 * W?

Answer 15

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

Answer 16

A=wl

Answer 17

correct

Answer 18

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?

Answer 19

put it into a expression maybe?

Answer 20

like a algebraic expression

Answer 21

ya

Answer 22

so...3xn?

Answer 23

something around there

Answer 24

so it says the length is twice the width

Answer 25

we called width w.
so we have 2w

Answer 26

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

Answer 27

2w + ?

Answer 28

2w+3?

Answer 29

correct.

Answer 30

2w+3=54ft^2?

Answer 31

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

Answer 32

remember area= L x W

Answer 33

we're missing the width right?

Answer 34

correct, what does the equation look like?

Answer 35

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

Answer 36

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

Answer 37

so we started by saying that w is the width

Answer 38

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

Answer 39

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

Answer 40

54 = (2w+3)w

Answer 41

I solve that right?

Answer 42

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

Answer 43

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

Answer 44

or 54/5

Answer 45

nope

Answer 46

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.

Answer 47

multiply this out
(2w+3)w

Answer 48

6w

Answer 49

6w^2

Answer 50

nope, do you remember how to expand?

Answer 51

Nope