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
WINSTONCH [101]
3 years ago
10

The length of a rectangle is 3 cm greater than its width. The perimeter is 24 cm. find the dementions of the rectangle

Mathematics
2 answers:
Korolek [52]3 years ago
8 0

Answer:

Step-by-step explanation: L=W+3

2(W+3)+2W=24

2W+6+2W=24

4W=24-6

4W=18

W=18/4

W=4.5 ANSWER FOR THE WIDTH.

L=4.5+3

L=7.5 ANSWER FOR THE LENGTH.

PROOF

2*4.5=2*7.5=24

9+15=24

24=24

Dmitriy789 [7]3 years ago
8 0

Answer:

3x9

Step-by-step explanation:

24-3-3 = 18

18 divided by 2 for the length is 9

You might be interested in
What fraction of a pound is eighty pence
AnnZ [28]
4/5 is the the fraction of a pound is eighty pence
8 0
2 years ago
Read 2 more answers
Suppose you want to learn more about the heights of the buildings in New York City. How would you choose a sample of the buildin
natulia [17]

Answer:

I'd use a Non-probability Sampling Method.

Explanation:

The question is already laced with criteria - Heights of Buildings in New York.

This means that there are certain buildings that won't fit in the sample. In a non-probability sample, objects or subjects are elected based on specified criteria that are not random. This means that not all objects/subject have a c<em>hance</em> of being included in the sample.

It is assumed that the question/assignment centers around high rise buildings.

Therefore, one storey buildings and bungalows that are within and outside New York will not be included in the sample.

Under the Non-Probability Sampling Method, it is essential to note that there are other subgroupings of sampling techniques. They are:

  1. Convenience Sample
  2. Voluntary Sample
  3. Purposive Sample
  4. Snowball Sample

Cheers!

3 0
2 years ago
Read 2 more answers
Which composition of transformations would map LMNO to L''M'N''O''?
mrs_skeptik [129]
What are the coordinates or plz put the graph in the question
6 0
3 years ago
Read 2 more answers
PLEASE!! I REALLY NEED HELP WITH THIS!!!
ioda
Do you have an example of what the "Constant of proportionality" would be for a different question?
7 0
3 years ago
F(x)=-x^2+8x+15 ...?
rusak2 [61]
Here i how I would do it:<span>f(x)=−<span>x2</span>+8x+15</span>
set f(x) = 0 to find the points at which the graph crosses the x-axis. So<span>−<span>x2</span>+8x+15=0</span>
multiply through by -1<span><span>x2</span>−8x−15=0</span> <span>(x−4<span>)2</span>−31=0</span> <span>x=4±<span>31<span>−−</span>√</span></span>
So these are the points at which the graph crosses the x-axis. To find the point where it crosses the y-axis, set x=0 in your original equation to get 15. Now because of the negative on the x^2, your graph will be an upside down parabola, going through<span>(0,15),(4−<span>31<span>−−</span>√</span>,0)and(4+<span>31<span>−−</span>√</span>,0)</span>
To find the coordinates of the maximum (it is maximum) of the graph, you take a look at the completed square method above. Since we multiplied through by -1, we need to multiply through by it again to get:<span>f(x)=31−(x−4<span>)2</span></span><span>
Now this is maximal when x=4, because x=4 causes -(x-4)^2 to vanish. So the coordinates of the maximum are (4,y). To find the y, simply substitute x=4 into the equation f(x) to give y = 31. So it agrees with the mighty Satellite: (4,31) is the vertex.</span>
8 0
3 years ago
Other questions:
  • How do you calculate the residuals of a scatter plot?
    13·1 answer
  • Sabrina threw a coin from a building 160 feet high at an initial speed of 30 feet per second. How many seconds will it take the
    6·1 answer
  • 1. Two object accumulated a charge of
    12·1 answer
  • A cone fits inside a square pyramid as shown For every
    13·1 answer
  • Samantha invests a total of $26,500 in two accounts. The first account earned a rate of return of 14% (after a year). However, t
    9·1 answer
  • Is the product of the square root of 16 and the square root of 10 rational or irrational?
    8·1 answer
  • -x=12<br> I am so confused, help please!
    5·2 answers
  • Calculate the specified probability Suppose that K is a random variable. Given that P(-2.2 ≤ K ≤ 2.2) = 0.725, and that P(K &lt;
    7·1 answer
  • Como convertir 0.8 horas asegundo​
    7·2 answers
  • Bob invests $500 into an account with 4.5%
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!