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
svetlana [45]
3 years ago
13

What is the value of x in the following equation?

Mathematics
2 answers:
dsp733 years ago
4 0

4x+8=20

First subtract 8 from both sides

4x+8=20(8-8 and 20-8)

4x=12

Now divide 4 from both sides

4x=12(4x/4 and 12/4)

x=3

So x= 3

Now time to check the equation.

4(3)+8=

Multiply 4 and 3

12+8=20

now add 12 and 8

So the answer is C. 3

nirvana33 [79]3 years ago
3 0
20-8=12
12/4=3
4x3+8=20
Answer is c.
You might be interested in
The numbers of birds Jim spots on different days during a
irina [24]
D.) 06.5. 20 words don’t mind these i just don’t know what else to say besides it’s D
8 0
3 years ago
Read 2 more answers
The formula for the perimeter of a rectangle is P = 2L + 2W. The length of a rectangle is 3 times its width. Which expression re
omeli [17]

The perimeter of a rectangle is given by the following formula:     P = 2W + 2L

To solve this formula for W, the goal is to isolate this variable to one side of the equation such that the width of the rectangle (W) can be solved when given its perimeter (P) and length (L).

     P = 2W + 2L

          subtract 2L from both sides of the equation

     P - 2L = 2W + 2L - 2L

     P - 2L = 2W

           divide both sides of the equation by 2

     (P - 2L)/2 = (2W)/2

     (P - 2L)/2 = (2/2)W

     (P - 2L)/2 = (1)W

     (P - 2L)/2 = W

Thus, given that the perimeter (P) of a rectangle is defined by    P = 2W + 2L ,

   then its width (W) is given by    <span>W = (P - 2L)/2</span>

3 0
3 years ago
Which of the following statements are true?
Butoxors [25]

Answer:

D

Step-by-step explanation:

i think it's correct if not I'm sorry

3 0
3 years ago
Write an equation for the nth term of an arithmetic sequence then find a 25.
Damm [24]
Look up math way and type it in its free and it will help alot.
5 0
4 years ago
Read 2 more answers
In the △ABC, the height AN = 24 in, BN = 18 in, AC = 40 in. Find AB and BC. Consider all possible cases. Case 1 : N∈BC, AB = __,
aivan3 [116]

Answer:

Case 1:

AB = 30

BC = 50

Case 2:

AB = 15.9

BC = 36.7

Case 3: Not possible

Step-by-step explanation:

Given

See attachment for illustration of each case

Required

Find AB and BC

Case 1:

Using Pythagoras theorem in ANB, we have:

AB^2 = AN^2 + BN^2

This gives:

AB^2 = 24^2 + 18^2

AB^2 = 576 + 324

AB^2 = 900

Take square roots of both sides

AB = \sqrt{900

AB = 30

To calculate BC, we consider ANC, where:

AC^2 = AN^2 + NC^2

40^2 = 24^2 + NC^2

1600 = 576 + NC^2

Collect like terms

NC^2 = 1600 - 576

NC^2 = 1024

Take square roots

NC = \sqrt{1024

NC = 32

So:

BC = NC + BN

BC = 32 + 18

BC = 50

Case 2:

Using Pythagoras theorem in ANB, we have:

AN^2 = AB^2 + BN^2

This gives:

24^2 = AB^2 + 18^2

576 = AB^2 + 324

Collect like terms

AB^2 = 576 - 324

AB^2 = 252

Take square roots of both sides

AB = \sqrt{252

AB = 15.9

To calculate BC, we consider ABC, where:

AC^2 = AB^2 + BC^2

40^2 = 252 + BC^2

1600 = 252 + BC^2

Collect like terms

BC^2 = 1600 - 252

BC^2 = 1348

Take square roots

BC = \sqrt{1348

BC = 36.7

Case 3:

This is not possible because in ANC

The hypotenuse AN (24) is less than AC (40)

3 0
3 years ago
Other questions:
  • Substitution Method. Help please? #5 please!
    13·1 answer
  • F(x)=x^2 what is g(x)
    7·1 answer
  • Hii, does anyone know a example for 28 + 29? thanks
    13·2 answers
  • What is the percent equivalent of 11.21? Select one: A. 112.1% B. 0.1121% C. 1,121% D. 11.21%
    14·1 answer
  • Which of the following is a conjugate for 7 + iSquare root of 2? a. − 7 + iSquare root of 2
    13·1 answer
  • The height in feet of a flying disc in t seconds is modeled by the equation h(t) = −4.5t2 + 19.6t + 3. What does the 3 in the eq
    5·1 answer
  • Annual insurance is 1,000 face value.
    15·2 answers
  • Equivalent Expressions: You need to decide if expressions are equivalent when given the value of variable/. Solve and tell if it
    6·2 answers
  • .............................................................
    12·2 answers
  • Given the rectangle, find all the missing angle measures based on the given angle.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!