Shellys old living room had a length that was twice its width. When she moved, her new living room was 2 feet longer and 4 feet wider that her old one. If w represents the width of her old living room write the expression used to represent the difference in the area of her old living room and her new living room.

Answers

Answer 1

Answer:

10w+6 is the difference between the two areas

Step-by-step explanation:

for the old room:

l=2w

wich mean

 Area_old=l*w=2w*w=2w²

for the new room:

L=l+2 since l=2w => L=2w+2

W=w+4

so

Area_new=L*W=(w+4)*(2w+2)= 2w² +10w+6

the difference is :

Area_new - Area_old= 10w+6


Related Questions

PLS HELP WITH THESE 2 QUESTIONS! I WILL GIVE BRAINLIEST AND 100 POINTS

Answers

Answer: it is 12 and 4.50

Step-by-step explanation:

Answer:

Hello hope your having a good day

Step-by-step explanation:

12 and 4.50

what is 1/5 x 6 ? help ajiwjwkwjwoksjw

Answers

Answer:

6/5 or 1.2

Step-by-step explanation:

put them both as fractions

1/5 x 6/1

6/5=1.2

Exact Form:
6/5
Decimal Form:
1.2
Mixed Number Form:
1 1/5

Sandy went to Pens R Us during their annual sale. There was a pack of 20 pens for $8.50. On another aisle, Sandy saw a pack of 6 pens for $4.50.Which is the better buy and why?. Find the rate and unit rate

Answers

Answer:

20, for 8.50

Step-by-step explanation:

6 + 6 = 12, which is 4.50 + 4.50, which would be about 10, so 20 for 8.50 would be better.

The equation y = mx + c is satisfied when
x=-1, y = 3, and also when x = 2, y=5
Find the values of m and c.​

Answers

Y=mx+c
X=-1; y=3 => 3=(-1).m+c
X=2; y=5 => 5=2.m+c
We have equations:
{(-1).m+c=3
{2.m+c=5

<=>{-3m=-2
{2.m+c=5

<=>{m=2/3
{c=11/3

So m=2/3 and c=11/3 we have y=2/3.x+11/3

Solve forx:
- 3x – 9= 2 - 1

Answers

Answer:

[tex]x = -\frac{10}{3}[/tex]

Step-by-step explanation:

2 - 1 = 1Plug 1 in: -3x - 9 = 1Add 9 to each side, so it now looks like this: -3x = 10Divide each side by -3 to cancel out the -3 next to x. It should now look like this: x = -10/3

I hope this helps!

Answer:

Step-by-step explanation:

Estimate the square root of 250 to two decimal places.

Answers

Answer:

15.81

Step-by-step explanation:

Please mark brainliest if this has helped. Have a good day and goodluck with your work!

Answer:

15.81

Step-by-step explanation:

The full answer is 15.8113883 but since you want it rounded to two decimal places the second 1 in 15.8113883 makes the number round to 15.81

what is 966×54278 what is the answer

Answers

52,432,548 and mark me as branliest it would help a lot :)
52432548 is answer sks

escribir 8/15 en forma reducida​

Answers

Answer: 0.533 :> :v

Step-by-step explanation:

hey mm, i’m lost idk what to do •__•

Answers

To find the perimeter, we must add together the length of each side.

The tick mark on the lines means they are equal, so that means we have two lines that are equal to 10

26 + 10 + 35 + 5 + 10 + (38 - 10) = 114"

Find the product of (x + 7)2

Answers

Answer:

2x+14

Step-by-step explanation:

Answer:

2x + 14

Step-by-step explanation:

Step 1:

2 × x + 2 × 14

Answer:

2x + 14

Hope This Helps :)

YALL I NEED HELP W MY HW. its asking for an example of something thats NOT A FUNCTION. i have no ideas !!! help plsss !!

Answers

answer: vertical lines

Answer:

A function is a relation in which each input has only one output. In the relation , y is a function of x, because for each input x (1, 2, 3, or 0), there is only one output y. x is not a function of y, because the input y = 3 has multiple outputs: x = 1 and x = 2.

Step-by-step explanation:

Simplify (-1)(-1)(-1)

Answers

Answer:

[tex]-1^{3}[/tex]

Step-by-step explanation:

Answer:

Simplified -1^3, Solution: -1

Step-by-step explanation:

Since you have to multiply -1*-1*-1 then the answer would be -1. Simply because when simplifying the equation -1*-1 is 1 (remember that when multiplying two negatives it adds to a positive). Then you multiply 1*-1 which comes out to be -1 as the answer. I hope this helps, if you need further explanation please comment below.

Simplify the following expression

Answers

Answer:

im pretty sure thats the answer

What value of x is in the solution set of 9(2x+1) <9x-18?

Answers

Answer:

x = 0

Step-by-step explanation:

9(2x+1) < 9x - 18

Distribute the 9 through

18x + 9 < 9x - 18

Get like terms on the same sides

9x < -27

Divide both sides by the value in front of the x

x < -3

Hope this helps! :)

Make an exponential model y(t) with the given properties. Assume that t is the number of periods.
The initial value is 460, and there is a 6% decrease each period.

Answers

Answer:

y(t) = 460(0.94)^t

Step-by-step explanation:

Use the basic exponential decay form, Y = a(1 - b)^x, where a is the starting amount/y-int, b is the growth/decay rate, and x is amount of time/periods.

Plug in the values we know:

y(t) = 460(0.94)^t will be the exponential model

The exponential model y(t) with the given properties should be considered as the [tex](t) = 460(0.94)^t[/tex].

Calculation of an exponential model:

Since

The initial value is 460, and there is a 6% decrease each period.

So here we use the basic exponential decay form i.e.

[tex]Y = a(1 - b)^x,[/tex]

here a is the starting amount

y is interest

b is the growth/decay rate,

and x is amount of time/periods.

So,

[tex]y(t) = 460(0.94)^t[/tex]

hence, The exponential model y(t) with the given properties should be considered as the [tex](t) = 460(0.94)^t[/tex].

Learn more about model here: https://brainly.com/question/24499895

does 4 time 9.99 give me 39.96?

Answers

Answer:

Yes

Step-by-step explanation:

Answer:

yes it does

Step-by-step explanation:

3  3

9.99

x        4

--------------

 39.9 6

4(b+24)=(12b+8) pls help

Answers

Answer:

b=11

Step-by-step explanation:

4(b+24)=(12b+8)

4b+96=12b+8

-4. -4

96=8b+8

-8. -8

88=8b

88÷8=11

Solve.

h + 14 = -14

h =

Answers

Answer:

h= -28

Step-by-step explanation:

h+14=-14 isolate h by subtracting 14 on both sides

h= -28

Answer:

h=-28

Step-by-step explanation:

k byeeeeeeeeeeeeee:)

WILL GIVE BRAINLIEST! LOOK AT THE IMAGE ATTACHED!

Answers

Answer:

x²-√3 x+1/2

Step-by-step explanation:

(√3-1)/2 and (√3+1)/2

the quadratic equation:

x²-(sum of the root)x +product of the roots

x²-((√3-1)/2 + (√3+1)/2)x+((√3-1)/2) )(√3+1)/2)

x²-(2√3/2)x+ (3-1)/4

x²-√3 x+1/2

x²-x√3 +1/2

LAST ONE \small \angle L and \small \angle M are supplementary, \small m\angle L=12x+45 and \small m\angle M=18x-30. Determine the measure of each angle

Answers

Answer:

[tex] m\angle L = 111\degree \\

m\angle M = 69\degree [/tex]

Step-by-step explanation:

Since, angle L and angle M are supplementary.

[tex]\therefore m\angle L + m\angle M= 180\degree \\ \therefore \: 12x + 45 + 18x - 30 = 180 \degree \\ \therefore \: 30x + 15= 180 \degree\\ \therefore \: 30x= 180 \degree - 15 \degree\\ \therefore \: 30x= 165 \degree \\ x = \frac{165 \degree}{30} \\ x = 5.5 \degree \\ \\ m\angle L = 12x + 45 \\ m\angle L = 12 \times 5.5 + 45 \\ m\angle L = 66 + 45 \\ \huge \red{ \boxed{ m\angle L = 111 \degree}} \\ \\ m\angle M=18x - 30 \\ m\angle M=18 \times 5.5 - 30 \\ m\angle M=99 - 30 \\ \huge \purple{ \boxed{ m\angle M=69 \degree}} \\ [/tex]

I am not sure what the answer is to this question. | x - 1 | + 5 = 2 can you please help?

Answers

Answer:

The answer is 4

Step-by-step explanation:

I hope it helps I had to do the math

what's -8+(-8)+(-9) and what is a negative number whose absolute value is greater

Answers

-8+(-8)+(-9) would be a negative 25

X-3.5= -3.1 I'm confused​

Answers

Answer:

See Below

Step-by-step explanation:

First, isolate x. To do that add 3.5 to each side

x - 3.5 =  -3.1

  +3.5    +3.5

x= 0.4

Answer:

X = 0.4

Step-by-step explanation:

X-3.5= -3.1  add 3.5 each side.

X = 3.5 - 3.1 simplify

X = 0.4   done!

Leah is paid semimonthly. How many fewer paychecks does she
receive in 2 years compared to someone who is paid weekly?

Answers

Answer:

Leah has 80 less paychecks than the weekly person.

Step-by-step explanation:

Leah is getting 24 paychecks in 2 years, Weekly person gets 104 paychecks in 2 years, 104 - 24 = 80 paychecks.

BC = 6x + 6,
AB = 8 +9, and
AC = 141.
Find BC

Answers

Answer: 60

Step-by-step explanation:

Since AB and BC creates AC, we can add them together to find x, then use that to find the value of BC.

8x+9+6x+6=141                  [combine like terms]

14x+15=141                          [subtract both sides by 15]

14x=126                               [divide both sides by 14]

x=9

Now that we have found the value of x, we can plug that into BC.

6(9)+6                                 [multiply]

54+6                                   [add]

60

Now, we know the length of BC is 60.

Answer:

60

Step-by-step explanation:

Fine the quotient of 16^2 - 9 / 4x + 3

Answers

Answer:

[tex]\frac{1036x-9}{4x}[/tex]

19. Roof trusses often use right triangles to make a flimsy 2 x 4 more rigid to hold up the weight of the roof. If a
house is 40 feet wide and the roof is an isosceles triangle with base angles of 30, how far is it from the
bottom edge of the roof to the peak?
(Answer is radical form please!!!)

Answers

Answer:

8

Step-by-step explanation:

What is the system of solutions?

Answers

it means that the 2 equations are actually the same line. So, the system has a solution set of all the possible points on that line.

Please help me!! Thank you

Answers

Answer:

The next fraction in the pattern is 243/324

Step-by-step explanation:

Every number in the pattern is x3 of the previous number  

Which of the green triangles is a reflection of the blue triangle? a Triangle D b Triangle B c Triangle C d Triangle A e None

Answers

Answer:

Triangle A

Step-by-step explanation:

Answer:

a

a

Step-by-step explanation:

a

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