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
inysia [295]
3 years ago
11

Find the side length of triangle.

Mathematics
1 answer:
Llana [10]3 years ago
3 0

Answer:

x=4

Step-by-step explanation:

Let's solve the equation:

3x+12=4x+8

12=4x-3x+8

12=x+8

12-8=x

4=x

x=4

The way i got this answer was by solving the equation using the following steps. Since you're solving for one side and have two different equations, put an equal sign in between the two equations to get the equation set up above. Then you need to have the x variable on one side, instead of both sides, so you take 3x and subtract it from both sides, leaving x on one side, because 4x-3x is equal to 1x, or just x. Then we need to have what is not attached to a variable on the other side to make it easier to solve, so you would need to subtract 8 from both sides to get rid of the 8 on the side with the variable, because if you subtract 12 from both sides, it will just make it more confusing to solve, and then 12-8 is equal to 4, so you get x is equal to 4.

You might be interested in
Assuming that i = 3.14, how much air will it take to fill a sports ball with a radius of 15 inches?
Licemer1 [7]

Answer:

706.86

Step-by-step explanation:

15² x π = 706.86

6 0
2 years ago
If f(x) = 4x + 2 and g(x) = 2x – 7<br> find f(g(3)).
antiseptic1488 [7]

Answer:

-2

Step-by-step explanation:

g(3)= 2(3)-7

g(3)= 6-7

g(3)= -1

f(g(3))= 4(-1)+2

f(g(3))= -4+2

f(g(3))= -2

6 0
2 years ago
Read 2 more answers
How do I do the top problem?
Schach [20]
I don't know sorry :(
8 0
3 years ago
The weight Wkg of a metal bar varies jointly
maria [59]

Answer:

d = \sqrt{\frac{216W}{35L} }

Step-by-step explanation:

Given that W varies jointly as L and d² then the equation relating them is

W = kLd² ← k is the constant of variation

To find k use the condition W = 140 when d = 4 and L = 54, thus

140 = k × 54 × 4² = 864k ( divide both sides by 864 )

\frac{140}{864} = k , that is

k = \frac{35}{216}

W = \frac{35}{216} Ld² ← equation of variation

Multiply both sides by 216

216W = 35Ld² ( divide both sides by 35L )

\frac{216W}{35L} = d² ( take the square root of both sides )

d = \sqrt{\frac{216W}{35L} }

6 0
3 years ago
I need help can someone help me
Marta_Voda [28]

Answer:

the answer is definitely d

8 0
3 years ago
Other questions:
  • Solve for x.<br> 4x-7=19
    10·2 answers
  • The cost of 10 oranges is $1.00. What is the cost of 5 dozen oranges?
    9·2 answers
  • Help pleasee I don’t get it
    5·1 answer
  • What property is this 5(2+3)=(2+3)5
    11·1 answer
  • 3x - 5 = 2x + 10<br> What’s the value of x
    11·2 answers
  • If SYSTEM is coded as '131625', and KARMA is coded as '94854' then MARKET is coded as _____? (A) 845926 (B) 548926 (C) 629845 (D
    15·1 answer
  • A university offers 3 calculus classes: Math 2A, 2B, and 2C. A set of students have each taken at least one of the three classes
    14·1 answer
  • Please I need help with this​
    10·1 answer
  • What is the ordered pair of the midpoint of a segment with endpoints at (3, 10) and (7,<br> 20)?
    12·1 answer
  • BRAINLIEST FOR CORRECT ANSWER, IM FAILING SCHOOL AND NEED HELP ASAP. EVEN OFFICIAL HELP COUNTS
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!