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
Pavel [41]
2 years ago
5

the 3 sides of triangle are n, 4n + 1 , 5n- 8. if the perimeter of the triangle is 93 cm, what is the length of each side?​

Mathematics
2 answers:
REY [17]2 years ago
7 0

Answer:

10, 41, 42

Step-by-step explanation:

(n)+(4n+1)+(5n-8)=93 because triangle perimeter

10n-7=93

10n=100

n=10

Nastasia [14]2 years ago
6 0

Answer: 10 cm, 41 cm, and 42 cm

Step-by-step explanation:

       We can set up an equation knowing the perimeter to solve for the lengths of each side. Then, we will plug the value of n into the different expressions that represent each side.

   Perimeter of a triangle:

P = <em>side a</em> + <em>side b</em> + <em>side c</em>

   Plug in our known values:

93 cm = (n) + (4n + 1) + (5n - 8)

   Simplify and combine like terms:

93 cm = n + 4n + 1 + 5n - 8

93 cm = n + 4n + 5n + 1 - 8

93 cm = 10n -7

   Add 7 to both sides of the equation:

100 cm = 10n

   Divide both sides of the equation by 10:

10 cm = n

n = 10 cm

        -

   Solve for the lengths of each side:

n = 10 cm

4n + 1 = 4(10) + 1 = 40 + 1 = 41 cm

5n - 8 = 5(10) - 8 = 50 - 8 = 42 cm

You might be interested in
Ellie must Mix 6 tablespoons of plant food for every 2 gallons of water if she has 6 gallons of water how much plant food should
miv72 [106K]
She should use 18 tablespoons of plant food.

6÷2= 3

3×6= 18

Hope this helps! :)

\(^ ◇^)/

7 0
3 years ago
3(x + 1) - (x-3) = 12<br> I need help I don’t I understand
balandron [24]

Answer:

3

Step-by-step explanation:

3x+3-x+3=12

3x-x=12-3-3

2x=6

x=6/2

x=3

4 0
3 years ago
Read 2 more answers
C/2 - 3 + 6/d when c=14 d=3
Nataliya [291]

Answer:

6

Step-by-step explanation:

14/2 - 3 + 6/3

Divide 14 by 2 to get 7.

7−3+6/3

Subtract 3 from 7 to get 4.

4+6/3

Divide 6 by 3 to get 2.

4+2

Add 4 and 2 to get 6.

6

4 0
2 years ago
A plane left Kennedy airport on Tuesday morning for an 890 mile 8 hour trip for the first part of the trip the average speed was
slega [8]

Answer:

The plane flew for 3 hours at 105mph and 115mph for 5 hours

Step-by-step explanation:

3 0
3 years ago
I really need help, someone please help me
Hoochie [10]

Answer:

18.84 meters.

Step-by-step explanation:

The formula for a circle is πr^2.

πr^2 = 28.26

3.14 * r^2 = 28.26

r^2 = 9

r = plus or minus 3.

But since this deals with the area of a circle, there is no way a radius can be negative. So, the radius is 3 meters.

The formula for the circumference is 2πr.

2 * 3.14 * 3 = 6 * 3.14 = 18.84.

So, the circumference of the circle is 18.84 meters.

Hope this helps!

3 0
3 years ago
Other questions:
  • I need to know the answer and how to get it
    11·1 answer
  • Elaine's jewelry box has a volume of 36 cubic centimeters. Which of the following could be the dimensions of Elaine's jewelry bo
    11·2 answers
  • What is cross multiplication
    5·2 answers
  • Paul invested three times as much money in the account paying 5% interest then he did in an account paying 4% of the total inter
    7·1 answer
  • Nuity for Stude...
    12·1 answer
  • Can someone help me out
    9·1 answer
  • What is the probability of not getting a number greater 5, when rolling a die?
    6·1 answer
  • Y = -3x + 6
    7·2 answers
  • What is the ratio of the width to the length of a rectangular field that has a perimeter of 120 meters and an area of 500 square
    7·1 answer
  • Given: 9x &gt; -36. Choose the solution set. {x | x &lt; -4} {x | x &lt; 4} {x | x &gt; 4} {x | x &gt; -4}
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!