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
Lostsunrise [7]
3 years ago
8

The sides of a triangle are given as 3x, x - 1 and 3x + 1. If the perimeter [2]

Mathematics
2 answers:
wariber [46]3 years ago
5 0

Answer:

The sides of the triangle are:

  • 3x = 3(8)=24
  • x-1=8-1=7
  • 3x+1=3(8)+1=25

Step-by-step explanation:

  • We know that the perimeter of a triangle is the sum of the length of its sides.

As the sides are given

  • 3x
  • x-1
  • 3x+1

so the equation of the perimeter becomes

P=3x+\left(x-1\right)+\left(3x+1\right)\:

as

  • P = 56m

so

56=3x+\left(x-1\right)+\left(3x+1\right)

3x+x+3x-1+1=56

7x-1+1=56

7x=56

\frac{7x}{7}=\frac{56}{7}

x=8

Now finding the sides

3x = 3(8)=24

x-1=8-1=7

3x+1=3(8)+1=25

Therefore, the sides of the triangle are:

  • 3x = 3(8)=24
  • x-1=8-1=7
  • 3x+1=3(8)+1=25
sveta [45]3 years ago
3 0

Answer:

The sides are 24cm, 7cm, and 25cm

Step-by-step explanation:

3x+x-1+3x+1=56 <---- First we combine like terms (the 1's cancel out)

7x/7=56/7 <--- Divide by 7 to isolate the variable

x=8 <--- Now that we've solved for x we need to plug it back into each side

3(8)=24

(8)-1=7

3(8)+1=25

24+25+7=56 <---- Make sure it all adds up to 56

Hope this helps :)

You might be interested in
A line segment is drawn from (1, 9) to (4, 9) on a coordinate grid.
ivanzaharov [21]
D :)
Because the y values are the same, all we need to take into account is the difference in the length of the x values. 
5 0
2 years ago
Which is the correct for of the equation 4x-3y=21 when solved for y<br> Please help
kkurt [141]
Move all terms that dont contain y to the right side and solve and you get:
y=4x/3-7
Hope this helps
4 0
3 years ago
Read 2 more answers
The fifth,ninth and sixteenth term of a Linear sequence are the consecutive term of an exponential sequence. Find the common dif
Sunny_sXe [5.5K]

Answer:

vfbg

Step-by-step explanation:

8 0
3 years ago
Easy question. Get your points for the day along with brainliest (15 more points) !
lawyer [7]

Answer:

its c......................................................

Step-by-step explanation:

5 0
3 years ago
What is the multiplicative inverse of 2 1/2?<br><br> A) 2/3<br> B) 2/5<br> C)2
zheka24 [161]
If you get rid of the whole number in that fraction, you will have 3/2.
So the opposite of that would be 2/3.
I believe the answer is 2/3.
5 0
3 years ago
Read 2 more answers
Other questions:
  • Solve the following equations
    14·2 answers
  • Put these numbers in order from greatest to least.<br>0.012<br>0.002<br>0.02<br>0.512<br>​
    10·1 answer
  • ada writes 10 + 8 = 18 on the board . to use the commutative property of addition to rewrite ada's addition sentence. what numbe
    13·1 answer
  • The GT brewery has hired you as an analyst to understand its market position. It is particularly concerned about its major compe
    10·1 answer
  • Which strategie would eliminate a variable in the system of equations? −x+6y=8 7x−y=−2 ​
    14·1 answer
  • A cube and the net for the cube are shown. <br><br> What is the surface area of this cube?
    15·1 answer
  • Someone help<br> What is 3.5=12s-55
    11·2 answers
  • PROBLEM I WITHOUT A CALCULATOR)
    7·1 answer
  • Shirabi spent $208 on a sewing machine to make purses. She spends a total of $10 on thread, fabric, and accessories for each pur
    9·2 answers
  • Jermaine is saving $60 per week for a new guitar. The amount he has saved, s, is represented by
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!