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
ipn [44]
3 years ago
11

Solve for x:

)}{2} " alt=" \frac{(x+20)}{2} " align="absmiddle" class="latex-formula"> =3x
Mathematics
1 answer:
Alisiya [41]3 years ago
4 0
(x+20)/2 = 3x
x+20 = 6x
6x - x = 20
5x = 20
  x = 4
You might be interested in
Which of the following would be the most logical first step to solving this
NikAS [45]

Answer:

D is correct option

Step-by-step explanation:

The correct option is D.

The standard quadratic equation is ax²+bx+c=0

Where a and b are coefficients and c is constant.

It means that constant are on the L.H.S and there is 0 on the right hand side.

Therefore to make it a quadratic equation first of all you have to add 11 at both sides so that the R.H.S becomes 0.

The given equation is:

2x2-x+ 2 = -11

If we add 11 on both sides the equation will be:

2x2-x+ 2 +11= -11+11

2x^2-x+13=0

Thus the correct option is D

You can further solve it by applying quadratic formula....

8 0
3 years ago
The graph shows the result of a matrix transformation, where the pre-image has dashed lines Which matrix operation is represente
diamong [38]

The <em>matrix operation</em> is the <em>addition subtraction </em>and <em>multiplication </em>involving matrices.  The coordinates of the <em>image </em>can be represented as a matrix obtained from the coordinates of the <em>preimage </em>through matrix operations

The best correct option is<u> option D)</u>,<em> (the y-coordinate for the point (8, -7) is to be replaced with a 7 to give (7, -7) as follows</em>:

\left[\begin{array}{rrrr}1&0\\0&-1\end{array}\right] \left[\begin{array}{rrrr}9&7&3&2\\-3&-7&-7&-5\end{array}\right]

The reason the above matrix value for the matrix operation are correct are as follows:

Known parameters:

From the diagram, we have that the <em>coordinates</em> of the vertices of the preimage are;

(2, -5), (3, -7), (9, -3), and (7, -7)

The <em>coordinates </em>of the vertices of the image are;

(2, 5), (3, 7), (9, 3), and (7, 7)

Required:

The matrix operation for the transformation of the preimage points to the image points

Solution:

The transformation from the coordinates of the vertices of primage to the  vertices of image involves the change in the sign from negative to positive, of the y-values of the image, which can be obtained by <em>multiplying by</em> (-1)

Therefore, the required matrix operation is presented as follows:

\mathbf{\left[\begin{array}{rrrr}1&0\\0&-1\end{array}\right] \left[\begin{array}{rrrr}9&7&3&2\\-3&-7&-7&-5\end{array}\right]} =\left[\begin{array}{rrrr}9&7&3&2\\3&7&7&5\end{array}\right]

Therefore, the <em>best correct</em> option is option D)

Learn more about matrix operations here:

brainly.com/question/17141646

3 0
3 years ago
50 POINTS !!<br><br><br> PLEASE HELP AND EXPLAIN !! ILL GIVE BRAINLIEST TO THE RIGHT ANSWERS.
allochka39001 [22]
I need the point my point is -
4 0
3 years ago
Read 2 more answers
Jo says she can find the percent equivalent of 3/4 by multiplying the percent equivalent of 1/4 by 3.how can you use a percent b
WINSTONCH [101]
  The percent equivalent to 1 / 4 = 25 %.
  The percent equivalent to 3 / 4 = 75 %.
   25 %  x  3  = 75 %   ( correct )
5 0
3 years ago
What is the pathorgeon
SCORPION-xisa [38]

Answer:

it is in  a term in biology that came into use in the 1800's to show about anything that can produce disease Hope this helps can I get branliest answer?

Step-by-step explanation:


8 0
4 years ago
Other questions:
  • . Anna gets paid $8.75/hour working as a barista at Coffee Break. Her boss pays her
    10·2 answers
  • Rate Problems:
    14·2 answers
  • Knowing that the team has won an average of 95 games over the past three seasons and that there are 162 games in a season, estim
    7·1 answer
  • Simplify: 8p - 3 + 9p + 6p + 2p - 6p - 3p - 9p
    13·2 answers
  • A marathon is 26.2 miles long. There is a water station every 114 miles along the race route and at the finish line. How many wa
    13·1 answer
  • On a map of the city,1inch represents 1.5 miles.what distance on a map would represent 12 miles
    7·1 answer
  • The regular price of an item at a store is p dollars. The item is on sale for 20% off the regular price. Some of the expressions
    7·1 answer
  • The value of an autographed baseball card increased from $39 to $65. What is the percent increase in value of the baseball card?
    5·2 answers
  • Word Questions - Fractions and Percents<br><br> HELP PLEASE
    7·1 answer
  • What are the coordinates of the point on the directed line segment from (-7,-9) to (-2,4) that partitions the segment into a rat
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!