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
stira [4]
3 years ago
7

The perimeter of a triangle is 31cm. Side one and two have an equal length, while side three is one cm shorter then twice the le

ngth of side one. How long is each side
Mathematics
1 answer:
Sav [38]3 years ago
3 0

Answer:side one is 8cm

Side 2 is 8cm

Side 3 is 15 cm

Step-by-step explanation:

The perimeter of a shape is the distance around the shape. The perimeter of a triangle is the sum of the sides of the triangle.

Let x represent the length of side one and side 2. Since they have equal length, the sum of their length is x + x = 2x cm

Side three is one cm shorter then twice the length of side one. This means that the length of side three would be 2x - 1

The perimeter of a triangle is 31cm. Therefore,

2x + 2x - 1 = 31

4x - 1 = 31

4x = 31 + 1 = 32

x = 32/4 = 8 cm

Side three = 2×8 - 1 = 16 - 1 = 15

You might be interested in
Please simplify: 5x + 2 (x - 3) = -2 (x - 1)
zysi [14]

Answer:

x= 8/9

Step-by-step explanation:

Open everything up to get 5x+2x-6=-2x+2. Move numbers with an x to the left side and without to the right to have 5x+2x+2x=2+6. Simplify to have 9x=8. Divide by 9 which leaves you with x= 8/9

3 0
3 years ago
15% of people on the beach do not wear sun screen. If 30 people don't wear sunscreen, what is the total number of people at the
lara [203]

Answer: The information you are given shows that 15% = 30. Multiply 30 by 6 and 2/3 (The number of times 15 goes into 100) and you have your answer. There are 200 people on the beach.

6 0
3 years ago
What is the y-coordinate of the solution of the system of equations? {y=3x−262x−y=19
givi [52]

Answer:

<h2>           y = -5</h2>

Step-by-step explanation:

y = 3x − 26

2x − y = 19

2x - (3x - 26) = 19

2x - 3x + 26 = 19

   - x = - 7

     x = 7

y = 3•7 -26 = 21 - 26 = - 5

6 0
3 years ago
Solve the following absolute value inequality. 3x - 727 x &lt; 16 X &gt; [?]​
RUDIKE [14]

Answer:

-2

Step-by-step explanation:

3|x-7|<= 27

then |x-7|<=27/3=9

hence, -9<=x-7<=9

therefore, -2<=x<=16

4 0
3 years ago
In the movie hidden figures what does the cop do to or For the three ladies
antoniya [11.8K]

Answer:

the cop offers them a police escort all the way to Langley

Step-by-step explanation:

having a car full of african americans in a car chase a police all the way too Langley.

3 0
3 years ago
Other questions:
  • If the coefficient of determination is 0.25 and the sum of squares residual is 180, then what is the value of SSY?
    6·1 answer
  • Simplify. <img src="https://tex.z-dn.net/?f=%5Csqrt%7B%5Cfrac%7B18%7D%7B50%7D%20%7D" id="TexFormula1" title="\sqrt{\frac{18}{50}
    13·2 answers
  • Marks age, X is six times his age 2 years ago. which equation represents the statement
    14·2 answers
  • a basket contains six apples and seven peaches. you randomly select a piece of fruit and then return it to the basket. then you
    11·1 answer
  •  For what value of x is the double product of the binomials x+2 and x–2 is 16 less than the sum of their squares?
    7·2 answers
  • Which of the following is an equivalent simplified expression for 2(4x + 7) – 3(2x – 4) ?
    11·1 answer
  • What does the graph look like for x^2?
    5·2 answers
  • Mila and Jessica work at the Macy’s shoe department. Mila’s weekly salary is $300 plus $5.00 for each shoe that she sells. Jessi
    9·1 answer
  • Answer the question with explanation;​
    12·2 answers
  • .Margaret is treating her best friend to a birthday dinner. Before ordering, Margaret wants to have an idea of the final bill. T
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!