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
tatiyna
3 years ago
12

Perimetrul unui dreptunghi este de 400 m, iar latimea este de 3 ori mai mica decat lungimea acestuia. Cati metri are lungimea dr

eptunghiului?
Mathematics
1 answer:
wlad13 [49]3 years ago
3 0

Răspuns:

150 m

Explicație pas cu pas:

Reamintim:

Perimetrul unui dreptunghi, P

P = 2 (lungime + lățime)

P = 400

Lățime = x

Lungime = 3x

Astfel, avem:

400 = 2 (3x + x)

400 = 2 (4x)

400 = 8x

Împărțiți ambele părți la 8

50 = x

Lungime = 3x

Lungime = 3 * 50

Lungime = 150 m

You might be interested in
What is the value of side b?<br> A 20<br> B 15<br> C 10<br> D 5
Pavel [41]
I am not able to see the picture
3 0
2 years ago
Read 2 more answers
A tank has dimensions of 12m x 8m x 5 meters using an iron sheet. The tank is open at the top. If the sheet is 4m wide, what is
Salsk061 [2.6K]

Answer:Length if tank=12m

Step-by-step explanation:

Dimension of tank is 12m by 8m by 5m

Which is length × breadth × heigh

6 0
3 years ago
Read 2 more answers
Which value, when placed in the box, would result in a system of equations with infinitely many solutions?
Fantom [35]

Answer:

<h2>If we placed the number 10 in the box, we obtain a system of equations with infinitely many solutions.</h2>

Step-by-step explanation:

The given system is

y=2x-5\\2y-4x=a

<em>It's important to know that a system with infinitely many solutions, it's a system that has the same equation</em>, that is, both equation represent the same line, or as some textbooks say, one line is on the other one, so they have inifinitely common solutions.

Having said that, the first thing we should do here is reorder the system

y=2x-5\\2y=4x+a

This way, you can compare better both equations. If you look closer, observe that the second equation is double, that is, it can be obtained by multiplying a factor of 2 to the first one, that is

y=2x-5\\2y=4x-10

So, by multiplying such factor, we obtaine the second equation. Observe that a must be equal to 10, that way the system would have infinitely solutions.

Therefore, the answer is 10.

4 0
3 years ago
I NEED HELPPPPPPPPPPPPPP ITS TIMED PLEASSE HURRY AND I WILL GIVE BRAINLIESTTTTT
luda_lava [24]

Answer:

4c + 6a < = 120 ...4(20) + 6(6) = 116 <== correct

4c + 4a < = 100....4(20) + 4(6) = 104 <== incorrect

first answer choice

5 0
2 years ago
Read 2 more answers
State a conclusion that seems reasonable.
melisa1 [442]
There will be a true-false test today. :)
4 0
3 years ago
Read 2 more answers
Other questions:
  • Which graph models the function f(x) = -4(2)x?
    5·2 answers
  • F(x)=x^-2x+4 find f(-1)
    7·1 answer
  • In right triangle ABC with the right angle at C. sin A = 2x + 5 and cos B =
    11·1 answer
  • Will make brainliest if answered correctly
    12·2 answers
  • Debbie cut a cord into sixths. She used five of the pieces to make necklaces. She used equal lengths of the remaining cord for e
    7·1 answer
  • Solve for 2.
    8·1 answer
  • Plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
    15·1 answer
  • What is 2x2 PLEASE ANSWER
    7·2 answers
  • PLZ HALP ME!!! eek<br><br> I will give brainliest, 5 stars, and a thanks
    12·1 answer
  • Help me find the slope to 0,0 and 6,1
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!