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
anzhelika [568]
3 years ago
5

What is 21(2-x)+12x=44

Mathematics
1 answer:
Sedaia [141]3 years ago
4 0
21(2-x)+12x=44    21x2=42  21x-x=21x
42-21x+12x=44    -21x + 12x= -9x
42-9x=44
-42       -42
9x=2                      9x/9=x  2/9=4.5
x=4.5


You might be interested in
Madelyn's car used 6 gallons of gas to drive 126 miles. At what rate does her car use
Reil [10]

Answer:

Step-by-step explanation:

You are given    GALLONS     and   MILES

   you want to find MILES / GALLON

     so just put those numebrs in

         MILES / GALLON =  126 miles / 6 gallons = 21 m/g  (or 21 MPG)

4 0
3 years ago
A, B, C and D are four towns.
djverab [1.8K]

Three of the four towns are on the vertices of the triangle ΔCBD, through

which the bearing can calculated.

<h3>Response:</h3>
  • The bearing of D from B is approximately <u>209.05°</u>

<h3>Method by which the bearing is found;</h3>

From the given information, we have;

AC = AB = 25 km

∠BAC = 90° (definition of angle between north and east)

ΔABC = An isosceles right triangle (definition)

∠ACD = ∠ABC = 45° (base angles of an isosceles right triangle)

tan(\angle ABD) = \dfrac{45}{25}

  • \angle ABD = arctan \left(\dfrac{45}{25} \right)  \approx 60.945^{\circ}

The bearing of <em>D</em> from <em>B</em> is the angle measured from the north of <em>B</em> to the

direction of <em>D.</em>

<em />

Therefore;

  • The bearing of D from B ≈ 90° + (180° - 60.945°) = <u>209.05°</u>

Learn more about bearings in mathematics here:

brainly.com/question/10710413

5 0
3 years ago
Earl needs to fill up juice cups for his little brothers birthday party. There are 25 juice cups and each holds 12 fluid ounces.
Blizzard [7]
It would take 3 bottles. 25 twelve-ounce cups equals out to 300 ounces. There is only 128 ounces in a gallon. 
8 0
3 years ago
Read 2 more answers
An elevator descends into a mine shaft at the rate of 6 m/min. If the descend starts from 20 meter above the ground level, how l
levacccp [35]
60 minutes. Take how far it is above ground (20 m) and add it to the absolute value of how far it is below ground (340 m) to get 360 meters, which you divide by the rate of descent (6 m/min) to get 60 minutes.
5 0
4 years ago
10) Solve the inequality for x.
Stella [2.4K]

Answer:

it is D

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • What is sum of 2/4 - 1 3/4
    9·1 answer
  • Plz someone help help me just someone plz<br><br><br><br><br>​
    13·1 answer
  • Bryan reads for x minutes. kelly reads for one-fourth the amount of time bryan reads. which statement explains why 14x14x and 0.
    6·1 answer
  • On circle OOO below, the measure of \stackrel{\LARGE{\frown}}{SV} SV ⌢ S, V, start superscript, \frown, end superscript is 120^\
    6·1 answer
  • Given the sequence 2, 4, 8, , 16,........, where x = 0, 1, 2, 3, .......what is the function rule? f(x) = 2x + 2 f(x) = 2(2)x f(
    15·1 answer
  • a boy flies a kite with 100 foot long string. the angle of elevation of the string is 48. how high is the kite from the ground.
    10·1 answer
  • A vessel sails 41 miles S 35° E. How far south has it sailed?
    14·1 answer
  • Which of the following best describes the graph below?
    10·2 answers
  • Can someone answer this for me
    5·1 answer
  • A new company, Games 2 U, is selling unlimited video game rentals online for up to 5 devices. They are offering two different pr
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!