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
Romashka [77]
3 years ago
13

What is 2x+2x+3x+3+3x+3=146

Mathematics
1 answer:
wolverine [178]3 years ago
4 0

x = 14 because when you add all the coefficients and then subtract off the six and then you have 10x = 140, divide 140 by 10, which equals x= 14

You might be interested in
For which value(s) of the constant k is the circle x² + (y − k)² = 16 tangent to the line y = 3?
STALIN [3.7K]

<em>Answer:</em>

<em />

<em>Step-by-step explanation:Let us find points of intersection of line  </em>

<em>3 </em>

<em>x </em>

<em>+ </em>

<em>4 </em>

<em>y </em>

<em>− </em>

<em>k </em>

<em>= </em>

<em>0 </em>

<em> and circle  </em>

<em>x </em>

<em>2 </em>

<em>+ </em>

<em>y </em>

<em>2 </em>

<em>= </em>

<em>16 </em>

<em>. We can do this by putting value of  </em>

<em>y </em>

<em> from first equation i.e.  </em>

<em>y </em>

<em>= </em>

<em>k </em>

<em>− </em>

<em>3 </em>

<em>x </em>

<em>4 </em>

<em> and we get </em>

<em> </em>

<em>x </em>

<em>2 </em>

<em>+ </em>

<em>( </em>

<em>k </em>

<em>− </em>

<em>3 </em>

<em>x </em>

<em>) </em>

<em>2 </em>

<em>16 </em>

<em>= </em>

<em>16 </em>

<em> </em>

<em>or  </em>

<em>16 </em>

<em>x </em>

<em>2 </em>

<em>+ </em>

<em>k </em>

<em>2 </em>

<em>+ </em>

<em>9 </em>

<em>x </em>

<em>2 </em>

<em>− </em>

<em>6 </em>

<em>k </em>

<em>x </em>

<em>= </em>

<em>256 </em>

<em> </em>

<em>i.e.  </em>

<em>25 </em>

<em>x </em>

<em>2 </em>

<em>− </em>

<em>6 </em>

<em>k </em>

<em>x </em>

<em>+ </em>

<em>k </em>

<em>2 </em>

<em>− </em>

<em>256 </em>

<em>= </em>

<em>0 </em>

<em> </em>

<em>This would give two values of  </em>

<em>x </em>

<em> and corresponding two values of  </em>

<em>y </em>

<em> i.e. two points. But tangent cuts the circle in only at one point. This will be so when discriminant is zero i.e. </em>

<em> </em>

<em>( </em>

<em>− </em>

<em>6 </em>

<em>k </em>

<em>) </em>

<em>2 </em>

<em>− </em>

<em>4 </em>

<em>⋅ </em>

<em>25 </em>

<em>⋅ </em>

<em>( </em>

<em>k </em>

<em>2 </em>

<em>− </em>

<em>256 </em>

<em>) </em>

<em>= </em>

<em>0 </em>

<em> </em>

<em>or  </em>

<em>− </em>

<em>64 </em>

<em>k </em>

<em>2 </em>

<em>+ </em>

<em>25600 </em>

<em>= </em>

<em>0 </em>

<em> or  </em>

<em>k </em>

<em>= </em>

<em>± </em>

<em>20 </em>

<em> </em>

<em>graph{(x^2+y^2-16)(3x+4y-20)(3x+4y+20)=0 [-10, 10, -5, 5]}</em>

5 0
4 years ago
Read 2 more answers
What did they do wrong​
Evgen [1.6K]
Add 4 they were supposed to subtract 4. The subtraction sign is actually represented as a negative 2x. I think..
5 0
3 years ago
127 pounds to kilograms?​
shusha [124]

For this case we must make a conversion from pounds to kilograms.

By definition we have to:

1 kg equals 2.20462 pounds. Making a rule of three we have:

2.20462 pounds ---------------> 1 kg

127 pounds -----------------------> x

Where "x" represents the amount of kg.

x = \frac {127 * 1} {2.20462} = 57.6062

Thus, 127 pounds represent 57.61 kilograms.

Answer:

57.61 kilograms.

8 0
3 years ago
Read 2 more answers
What number completes both equations? 1/5 divided 6 ? Times 6= 1/5
jasenka [17]
Correct me if I'm wrong, but isn't it 1?

((1/5)/6)x6=1/5
7 0
4 years ago
Read 2 more answers
Write an inequality equation: Lyla has $100 in her bank account. She wants to buy presents that are $5 each. Wrapping paper will
lisov135 [29]
(100 - 25) / 5
15 presents
6 0
3 years ago
Other questions:
  • Solve for x. x2≥−4 <br><br> please help
    10·1 answer
  • What is 11 feet and 8 inches plus 2 feet and 9 inches
    13·1 answer
  • What is 2 1/4 divided by 3/4 in simplest form
    12·1 answer
  • Write seven and twelve hundredths in standard form.
    6·2 answers
  • A shipping container is in the shape of a right rectangular prism with a length of 2 feet, a width of 14.5 feet, and a height of
    9·1 answer
  • Solve this please -3 1/6+6 2/3
    7·1 answer
  • a five foot boy casts a 2 foot shadow. At the same time the shadow of the court house tower is 25 feet in length. How tall is th
    13·2 answers
  • Quadrilaterals has a regular quadrilateral?
    15·1 answer
  • Archimedes drained the water in his tub.
    7·1 answer
  • Charlie is flying a kite one afternoon and steps on the end of the string to have his
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!