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
zlopas [31]
2 years ago
11

Solve the simultaneous equations 3 x + 2 y = 18 3 x + y = 12

Mathematics
1 answer:
natulia [17]2 years ago
8 0

Answer:

x=2 , y=6

Step-by-step explanation:

        3 x + 2 y =    18

        3 x +     y =   12

     (-)       (-)         (-)

-------------------------------------------

                     y =    6

                 

3x+6=12

=>3x=12-6

=>3x=6

=>x=6/3

=>x=2

You might be interested in
Supposed you have been given the task of engineering this product knowing that in your state the cost of electricity is 18 cents
Usimov [2.4K]

You would have about 3472 Hours

.18\8=1.44 for 8 hour

5000/1.44=3472

Hope this helps :)

5 0
3 years ago
Question 8 of 20
Gnesinka [82]
C is the answer because the X factors can’t repeat
3 0
3 years ago
Boris drove 240 miles using 9 gallons of gas. At this rate, how many gallons of gas would he need to drive 216 miles?
satela [25.4K]
Use proportion to solve this.
240 miles needs 9 gallons
216 miles needs (9÷240) × 216 = 8.1 gallons

Hope it helped!
6 0
3 years ago
Read 2 more answers
Your grandmother gave you $6 with which to buy a present. This covered 3/8 of the cost. How much did the present cost?
Readme [11.4K]
The present cost 16$.
3 0
3 years ago
Midsegment of triangle <br> Find X
Charra [1.4K]

Answer:

10 = x

Step-by-step explanation:

This is what is called the Midsegment Theorem, which states that the relation of a triangle's midpunkt is parallel to the triangle's third side, and the mid-segment length is half the third side length, so you would take half of 4x + 20 and set that expression equal to the midsegment:

2x + 10 = 3x

-2x - 2x

____________

10 = x

You then plug this back into both expressions above to get the double-segment of 60 and the mid-segment of 30. We can tell this is correct because 30 and 60 are relatively proportional to each other.

I am joyous to assist you anytime.

4 0
3 years ago
Other questions:
  • What is the equation of the line passing through the points (Two-fifths, StartFraction 19 Over 20 EndFraction) and (one-third, S
    12·2 answers
  • a line segment of length 84cm has been divided into two parts in the ratio 4:3 find the length of each part​
    8·1 answer
  • About congruent statments. i need help/a double check please!
    7·1 answer
  • Colby wants to set square tiles on the top of the wooden box the top of the box is a rectangle 7 1/2 inches long and 5 1/2 inche
    6·1 answer
  • PLEASE HELP!! its due in 20 minutes and i dont get this
    14·2 answers
  • Please help and if you can please explain it well thank you
    13·1 answer
  • The graphs below have the same shape. What is the equation of the blue graph?
    5·1 answer
  • What is the factored form of this expression? 2x^3+5x^2+6x+15
    5·1 answer
  • Convert the decimals to fractions in the simplest fractions.<br> Show your work<br> 10.6=<br> 5.05=
    6·1 answer
  • The sum of two consecutive integers is 65. what are the two integers? show steps please.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!