A bedroom door has an area of 21 square feet. Its perimeter is 20 feet. What are the
dimensions of the door?

Answers

Answer 1

Answer:

The door is 7 feet x 3 feet

Step-by-step explanation:

AREA: 7 x 3 = 21

PERIMITER: 7 + 7 + 3 + 3 = 20


Related Questions

Suppose the average driving speed on family trip is 48 mi/h. Which function rule models the distance traveled d(t) as a function of time t spent traveling. A. d(t) = t + 48 B. d(t) = 48 - t C. d(t) = 48t D. d(t) = t/48

Answers

I’m pretty sure it’s b sorry if wrong n

A telephone company offers two different types of billing. The first option is to pay an initial $10 fee with an additional $0.09 per MB of data used. The second option is to pay an initial $16 fee plus an additional $0.07 per MB of data used.

Part A: Write a system of equations that will model the situation.

Part B: How many MB of data would you have to use in order for both plans to cost the same amount? Explain how you determined your answer.

Answers

Answer:

whattttt?

Step-by-step explanation:

Answer:

for the second one It would take 300 MB

Step-by-step explanation:

HELP ASAP!!!

Grocery wants to build a warehouse that is equidistant from its three stores L, M, and N. Which construction correctly finds the best location of the warehouse?

ONLY ANSWER WITH LOGIC REASONING AND NOT FOR POINTS please.

Answers

The answer selected is right. It is the circumcenter and is the most equidistantly positioned. I took the class. There’s not a fantastic way to explain it other than it just makes sense when looking at it. Try to explain your confusion in the comments and maybe I can help a little closer to your problem. Hope this helped? :)

Write an equation to represent the puppy's
weight in terms of the number of weeks since the person got the puppy.

I need one equation for Camille and one for Olivia PLSS

Answers

Answer:

Camille:[tex]y=\frac{n}{2} +\frac{3}{2}[/tex]

Olivia: [tex]y=x+4[/tex]

Step-by-step explanation:

hope it helps have a great day

−8.3=d+4.7
Pls Help me

Answers

-d = 4.7 + 8.3
-d = 13
d = -13

You earned (and saved) $3500 last summer weed whacking. Your folks tell you to get a savings account. You put all the money in one that pays 3% interest. How much would be in the account in 20 years?

Answers

Answer:

2100

Step-by-step explanation:

Answer:

2100

Step-by-step explanation:

Dexter’s aquarium holds 4.5 gallons of water. He needs to add some chemicals to balance the pH level in the aquarium. However, the chemicals are in liters. There are approximately 3.8 liters in 1 gallon. Which measurement is closest to the number of liters of water in Dexter’s aquarium?
A 1.18 L

B 0.7 L

C 8.3 L

D 17.1 L

Answers

Answer:

the answer is d 17.1 L

Step-by-step explanation:

6(x-1)=9(x+2) what equal what answer

Answers

Answer:

well x = -8 so

Let's solve your equation step-by-step.

6(x−1)=9(x+2)

(6)(x)+(6)(−1)=(9)(x)+(9)(2)

6x+−6=9x+18

6x−6=9x+18

step two

6x−6−9x=9x+18−9x

−3x−6=18

step three

−3x−6+6=18+6

−3x=24

last step

−3x /−3 = -24 /−3

x=−8

Step-by-step explanation:

X=-8

Trust me bro that’s right

50 elevens-1 elevens

Answers

Answer:

Step-by-step explanation:

50 elevens-1 elevens =    ( 50 -1 ) elevens  =    49 elevens

or  49 x eleven    =  49 x 11 =   _______      (use your calculator here)

Answer:

( 50 -1 ) elevens  =    49 elevens =  49 x 11 =   539

or

50 elevens - 1 elevens = (50 x 11) - (1 x 11)

550 - 11 = 539

7th grade math help me pleasee

Answers

Answer:

2a. N+6=15 N= 9

Step-by-step explanation:

N+ 6=15

n=6-15

n=9

Help Me Plz 24=6a Plz

Answers

Answer:

a = 4

Step-by-step explanation:

just divide 24 by 6

a = 4

Hope this helped! Have a nice day! Plz mark as brainliest!!! :D

-XxDeathshotxX

Answer:

If your solving for A, A=4

Step-by-step explanation:

Divide 6 on both sides

Jonny has $50 in a savings account. Each week, he deposits $13 in the account. Jonny's brother has $90 in a saving account. Each week, he deposits $11 in the account. Write an algebraic expression to describe how much money Jonny and his brother will have in their accounts after m months.

Answers

Answer:

140 + 96 m

Step-by-step explanation:

There are 4 weeks in 1 month.

Therefore:

Jonny has $50 in a savings account. Each week, he deposits $13 in the account.

$50 + $13 × 4m

The algebraic expression is given as:

50 + 52m

Jonny's brother has $90 in a saving account.

Each week, he deposits $11 in the account.

The algebraic expression is given as:

$90 + $11 × 4m

90 + 44m

An algebraic expression to describe how much money Jonny and his brother will have in their accounts after m months is written as:

Amount Jonny has + Amount his brother has

50 + 52m + 90 + 44m

= 50 + 90 + 52m + 44m

= 140 + 96 m

Andrew walks 3/4 mile in 10 minutes. Jill walked 4/5 in 15 minutes. What was the difference in their speeds, in miles per hour?

Answers

Answer:

1.3 mph I think

Step-by-step explanation:

Write the equation of a line with that passes through the
points (-3, -2) and (6,1)?

Answers

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: Y = 1/3x - 1

:

M = y2 - y1/ x2-x1

M = 6 - (-3) / 1 - (-2)

Y = 1/3x + b

Then substitute one of the points into the equation

-2= 1/3(-3) + b

-2 + 2 + b = 1/3(-3) +b - b + 2

-b = 1/3(-3) + 2

-b = 1

b = -1

Y = 1/3x - 1

Then i plugged it into

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Find the value of x.

Answers

Answer:

x= 35.7339234

Step-by-step explanation:

cos(52)= 22/x

x= 22/cos(52)

What do you notice? What do you wonder?

Answers

You could respond with: I notice that the socks are 2 different colors and on the ends of a hanger. I wonder why one hanger is slanted when the other is straight.

Can the following properties of figures change when transformed with a rigid motion? Move each letter a-h to the appropriate box.


A. Side Lengths
B. Slope of a Side
C. Orientation
D. Area
E. Interior Angles
F. Location in the plane
G. Parallel Lines in the pre-image
H. Perimeter


Yes, Can Change No, Can't Change

Answers

John has consumed 1,600 calories so far today. He has also burned off 400 calories at the gym. He would like to keep his daily calorie total to 1,800 calories per day. How many calories does he have left to consume for the day? Is 1,000 a viable solution to this problem?

What are the distances from the point (x,y) to the focus of the parabola and the directrix, select two answers

Answers

Answer:

3,5

Step-by-step explanation:

axis

Solve the system and determine whether it is consistent or inconsistent and dependent or independent.
2x – 4y = 10
-12x + 24y = -60

Answers

Answer is in a photo below.
It is consistent and independent.
x=25, y=10

Carly went for a walk and jog
• She started walking.
• After a few minutes, Carly began jogging at a faster speed than she was walking
• Carly got tired then slowed down to a slower speed than she was jogging

which graph best represents the distance Carly went?

Answers

Answer:

I believe D

Step-by-step explanation:

The reason is she starts off slowly but then keeps on gaining up and up.

Rewrite in simplest terms: 8(-10r-9)+9r

Answers

Answer:

-71r-72

Step-by-step explanation:

8(-10r-9)+9r

Distribute the 8

-80r -72  +9r

Combine like terms

-80r+9r   -72

-71r-72

The formula shows that c, the total cost of buying pizzas at Al's restaurant depends on p, the number of pizzas ordered.



c=9p



What is the independent variable in the equation?

Answers

Answer:

p, the number of pizzas ordered

Step-by-step explanation:

The independent variable in the equation will be the variable that controls the cost.

Since the total cost will depend on the number of pizzas ordered, the number of pizzas ordered will be the independent variable.

The total cost is the dependent variable, since it depends on the number of pizzas.

So, the independent variable in the equation is p, the number of pizzas ordered.

WILL GIVE BRAINLIEST!
Solve. Use the discount equation
S = R − rR,
where S is the sale price, R is the regular price, and r is the discount rate.

An exercise bike is on sale for $330, having been marked down 25% off the regular price. Find the regular price.

Answers

Answer:

$440

Step-by-step explanation:

Which inequality is equivalent to this one? y-85-2 y-8+82-2+8 oy- 8+8 ​

Answers

Answer:

The answer is the forth one , Y-8+2⩽-2+2

The equivalent inequality of y - 8 ≤  -2 is y - 8 + 8≤  -2 + 8

How to determine the equivalent inequality?

The inequality is given as:

y - 8 ≤  -2

Add 8 to both sides of the inequality

y - 8 + 8≤  -2 + 8

Hence, the equivalent inequality of y - 8 ≤  -2 is y - 8 + 8≤  -2 + 8

Read more about inequalities at:

https://brainly.com/question/11234618

Write an equation of a line in slope intercept form that passes through (6,5) 1 poi
and is parallel to y =-X+4 *

Answers

Answer:

y = -x + 11

Step-by-step explanation:

The slope of the line y = -x + 4 is -1.

So the slope of our line is also -1 ( because they are parallel).

First use the point-slope form of the equation of a line:

y - y1 = m(x - x1) where m is the slope and (x1, y1) is a point on the line.

Here m = -1 and (x1, y1) = (6, 5).

So we have:

y - 5 = -1(x - 6)

y - 5 = -x + 6

y = -x + 11  <------ Slope intercept form.

Can someone find the area of the rhombus?

Answers

Answer:

A=270 in^2

Step-by-step explanation:

A=d1*d2/2 formula for A using the diagonals

A=45*12/2

A=540/2

A=270 in^2

Find the measure of angle F

Answers

Answer:

∠ F = 80°

Step-by-step explanation:

The sum of the interior angles of a polygon is

sum = 180° (n - 2) ← n is the number of sides

Here n = 6 , then

sum = 180° × 4 = 720°

Sum the interior angles and equate to 720

7x + 7x + 4x + 7x + 7x + 4x = 720

36x = 720 ( divide both sides by 36 )

x = 20

Then

∠ F = 4x = 4 × 20° = 80°

Determine the area of each triangle.

Answers

Answer:

33 cm27 m

6. 7mm

dont remember how to do the rest

Step-by-step explanation:

Find slope of line that passes through the points (2,-5) and (3,4).

Answers

Answer:

The slope is 9/1 or just 9.

Step-by-step explanation:

I used the y1-y2/x1-x2 slope formula.

Pls I need help ASAP

What is 2.5 - 1.4

Answers

Answer:

1.1

Step-by-step explanation:

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