1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
otez555 [7]
3 years ago
12

A rectangular room is 2 times as long as it is wide, and its perimeter is 30 meters. Find the dimension of the room.

Mathematics
1 answer:
disa [49]3 years ago
8 0

Answer:

5 by 10

Step-by-step explanation:

We know that the equation of a perimeter of a recangle is 2(l)+2(w), l being length and w being width. We know that l=2w. So the perimeter of this room would be:

2(2w)+2(w)=30

4w+2w=30

6w=30

w=5

l=2w

l=10

the dimensions are 5 by ten

You might be interested in
What type of triangle has only two congruent sides?
grandymaker [24]

Answer: A triangle that only has two congruent sides is called an isosceles triangle. Two equal sides and two equal angles.

7 0
1 year ago
Read 2 more answers
Maureen walked 3 miles how many feet did she walk
Ostrovityanka [42]

Answer:

15,840 feet.

Step-by-step explanation:

We have been given that Maureen walked 3 miles. We are asked to convert the distance walked by Maureen in feet.

Since we know that 1 mile equals 5,280 feet, so to convert our given distance we will multiply 3 by 5,280.

\text{Number of feet Maureen walked}=\text{3 miles}\times \frac{5,280\text{ feet}}{\text{Mile}}

\text{Number of feet Maureen walked}=3\times 5,280\text{ feet}

\text{Number of feet Maureen walked}=15,840\text{ feet}

Therefore, Maureen walked 15,840 feet.

7 0
3 years ago
Keith will run at most 39 miles this week. So far, he has run 21 miles. What are the possible numbers of additional miles he wil
Luda [366]
Uhhh 18?? 9+9, 10+8, 7+11, 6+12, 5+13, 4+14, 3+15, 2+16, 1+17
3 0
2 years ago
Need help with 13 and 14
Svetach [21]

Answer:

13. A

14. C.

Step-by-step explanation:

A relation is a function if there is only one y assigned to each x.

That is if you have a set of points, there should be no repeated x value.

So looking at {(0,0),(-2,4),(-2,-4),(-3,7)} this is not a function because you have two x's that are the same. A.

The slope-intercept form of a linear equation is y=mx+b where m is the slope and b is the y-intercept.

The y-intercept is where the graph goes through the y-axis at.  It goes through at -1 so b=-1.

The slope is rise/run.  So starting from the y-intercept (0,-1) we need to find another point to count the rise & run to... How about (3,1)? That works.  You can do the counting if you want. You could also use the slope formula.

To use the slope formula, I just like to line the points up vertically and subtract vertically then put 2nd difference over the 1st difference.

(0,-1)

-(3,1)

--------

-3  -2

So the slope is -2/-3 or just 2/3.

So the equation is y=2/3 x-1

C.

3 0
3 years ago
Skeleton practices playing spooky music on his piano he practice 60 minutes every single day how many hours does skeleton play i
k0ka [10]
He plays for 14 hours
5 0
3 years ago
Other questions:
  • What is the product of a number and 3?
    10·2 answers
  • If the rate of the boat in still water is 27 mph, and the rate of the current of a river is x mph, what is the rate of the boat
    13·1 answer
  • Please please help!! I'm not sure if I have the right answer!!
    14·2 answers
  • Plsss help! Seventeen trees are saved for each ton of paper recycled. How many tons of paper will need to be recycled to save 13
    9·2 answers
  • How many solutions exist for the given equation?<br><br> 1/2(x + 12) = 4x – 1
    13·2 answers
  • Sarah has one bag of ten same-size chips numbered 1-10 and one six-sided die. What is the probability that she will pull an odd
    6·1 answer
  • Expand and simplify : A) (x+7)(x+10). B) (X-3) (X-9)
    11·1 answer
  • What is the horizontal distance from the plane’s starting position to its finishing position???? I will mark brainliest
    8·1 answer
  • A 5-pound bag of sugar costs $9.25. What is the unit price of the sugar?
    9·2 answers
  • Please help
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!