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
Nezavi [6.7K]
3 years ago
5

4x+2y=0 3x-y=-10 solve the system

Mathematics
1 answer:
erik [133]3 years ago
5 0

Divide the first equation by 2:

\begin{cases}2x+y=0\\3x-y=-10\end{cases}

Sum the two equations:

5x = -10

Divide both sides by 5:

x=-2

Substitute this value for x in one of the equation (for example the first) and solve for y:

-8+2y = 0 \iff 2y=8 \iff y=4

You might be interested in
Hi guys please help me<br><br>what is the reciprocal of 3 5/9​
kramer

Answer:

9/32

Step-by-step explanation:

3 5/9

=> (27+5)/9

=> 32/9

Reciprocal of 32/9 is,

=> 9/32

3 0
2 years ago
Which is bigger 5.8 or 5.5
frutty [35]

Answer:

5.8 is bigger

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What is the area of the parallelogram?
Morgarella [4.7K]

Answer:

Step-by-step explanation:

formula for area of parallelogram

= A=bh

4 0
2 years ago
Example 2:
Montano1993 [528]
Taking this example into account, we can see that setting the first value equal to 1, we obtain that F(x)=0.5x+1=4 and x=6. Using this information, we find that F(x+1)=0.5(x+1)+1=0.5(6+1)+1=4.5. It shows that when x is positive, the succussive terms are increasing.

Referring to that finding, if we set initial value less than zero, which means that we are solving 0.5x+1<0 and taking a number in the interval of the solution, which means x ∈ (- ∞, -20). Setting x=-19, we find that F(x)=0.5x+1=-19 and x=-40. In the next iteration, F(x+1)=0.5(x+1)+1=0.5(1-40)+1=-18.5. In the next iteration, F(x+2)=0.5(x+2)+1=0.5(2-40)+1=-18. By this way, we find that even if the initial value is less than zero, value of the successive iterations is increasing. 

Using the function g(x)=-x+2 and taking the initial value equal to 4, we find that g(x)=-x+2=4 and x=-2. In the next iteration, g(x+1)=-(x+1)+2=-(-2+1)+2=3. If we continue the iterations we'll see that they are decreasing.
Setting the initial value equal to 2, we find that g(x)=-x+2=2 and x=0. The next iteration is g(x+1)=-(x+1)+2=1. In this case, the interations are also decreasing. 
If we set the initial value equal to 1, we find that g(x)=-x+2=1 and x=1. In the next iteration, g(x+1)=-(x+1)+2=0 and the iterations are decreasing. 
8 0
3 years ago
N fewer carrots than 12
3241004551 [841]
Its simple    (n-12) because n is the variable and since it says fewer, then that means less than, which is subtracted by the number given which would be 12. Hope this helps! XD 

8 0
2 years ago
Other questions:
  • If the the discriminant of a quadratic equation is greater then 0, which of the following is true
    9·1 answer
  • Explain how to factor the following trinomials forms: x2 + bx + c and ax2 + bx + c. Is there
    12·1 answer
  • I need the answers to this now!
    10·2 answers
  • Find the sum of 46 + 42 + 38 + ... + (-446) + (-450)46+42+38+...+(−446)+(−450)
    6·2 answers
  • Four equivalent expressions for 3(6m+3)
    8·1 answer
  • Is 80 oz grater than 5 lb?
    13·1 answer
  • $84.12 for 12 lbs of chocolate ; $35.05 for p lbs of chocolate
    10·1 answer
  • Rewrite the expression in terms of ln 4 and ln 5.<br> ln(400)
    11·1 answer
  • What are the solutions of the equation (x + 2)2 + 12(x + 2) – 14 = 0? Use u substitution and the quadratic formula to
    8·1 answer
  • Direction: Fill in the boxes with "Yes" or "No". KITE SQUARE RHOMBUS RECTANGLE P Property Opposite sides are equal. Opposite cid
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!