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
Whitepunk [10]
1 year ago
8

The perimeter of a triangle is 19 cm. If the lengh of the longest side is twice

Mathematics
1 answer:
aliya0001 [1]1 year ago
7 0

If the  perimeter of a triangle is 19 cm. The lengths of 3 sides is: a = 8, b = 7, c = 4.

<h3>Parimeter</h3>

Let a = longest

Let b= shortest

Let c= third side

a = 2c

a = (b+ c) - 3

a + 3 = b + c

Using three variables to solve the expression for perimeter

Perimeter= 19 cm

a+ b + c = 19

a + (a + 3) = 19

2a + 3 = 19

2a= 16

Divide both side by 2a

a=16/2

a = 8

a = 2c

8 = 2c  

c=8/2

c = 4

a + b + c= 19

8 + b + 4 = 19

12 + b = 19

b=19-12

b = 7

Hence,

a = 8, b = 7, c = 4

Therefore If the  perimeter of a triangle is 19 cm. The lengths of 3 sides is: a = 8, b = 7, c = 4.

The complete question is:

Perimeter of triangle is 19cm. If the length of the longest side is twice that of the shortest side and 3 less than the sum of the lengths of the 2 sides find lengths of 3 sides.

Learn more about perimeter here:brainly.com/question/19819849

#SPJ1

You might be interested in
Please help ASAP!! I'm in. a google meet rn and need to prove I got this question right
Aleks04 [339]

Answer:

x = 5.4

Step-by-step explanation:

(This question has already been answered, but both of the incorrect ones were deleted, so for future reference...)

Fig A is a scale image of Fig D. These two quadrilaterals are similar, and thus, the side lengths of corresponding sides are proportional. Set the proportion x/3 = 7.2/4 (you could alternatively write it as x/7.2 = 3/4 but for the simplicity's sake, and assuming anyone who has this problem would already know how to solve proportions like these...)

7.2/4 = 1.8

so

x/3 = 1.8

now multiply both sides by 3 to get x = 5.4

4 0
3 years ago
What do -4 (x+7)-4 equal
Dima020 [189]

Answer:

-4x-32  Can i please get a brainliest because this correct.

Step-by-step explanation:

−4(x+7)−4

Distribute:

=(−4)(x)+(−4)(7)+−4

=−4x+−28+−4

Combine Like Terms:

=−4x+−28+−4

=(−4x)+(−28+−4)

=−4x+−32

Answer:

=−4x−32

5 0
3 years ago
50 PTS PLUS I WILL MARK BRAINLIEST
ch4aika [34]
Subtract 5x to both sides
7 0
3 years ago
Read 2 more answers
I need the answer for a= and b=
Lerok [7]
The answer is 67 and 34!
3 0
3 years ago
Help me answer this question
borishaifa [10]
To find the answer you would need to add 11 to 75 and then that is 86 so then divide that by 1 and the answer is 86
7 0
2 years ago
Other questions:
  • Kai buys 6 fiction books and 4 nonfiction books.
    9·2 answers
  • Which answer is equal to the quotient in the expression below?<br><br> 6x^3 + 7x^2 - 1/2x + 1
    10·2 answers
  • Find the measure of each angle. Assume the lines are parallel.
    8·1 answer
  • A machine is used to fill 1-liter bottles of a type of soft drink. We can assume that the output of the machine approximately fo
    6·1 answer
  • Sally is going furniture shopping using her credit card. If her credit card has a limit of 2,000 and she is currently holding a
    7·2 answers
  • Evaluate 1/x^-2 for x = 7. <br> A. -49<br> B. 1/49 <br> C. 49
    6·2 answers
  • True or false:<br> In naming arcs, ABC is equivalent to AC
    11·1 answer
  • elise bought a video game for $65.00. if the store charged 150% of what it paid for the game, how much is the store’s profit?
    13·2 answers
  • How many faces does the figure shown have?
    7·1 answer
  • Is 10, 20, 40, 80... an arithmetic sequence?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!