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
astraxan [27]
3 years ago
8

How to solve 3x+2y=-1, 6x+4y=0 by elimination

Mathematics
1 answer:
kondaur [170]3 years ago
3 0
(1) 3x+2y=-1
(2) 6x+4y=0

This system of equation has no solution. Proof
multiply all the term of (1) by two ==>6x+4y=-2
Notice that in (2) you have the same thing but equal to zero.
Same quantity can't equal 0 & -2. So no solution
You might be interested in
What is the area of this square with side of 5x4y2
Ulleksa [173]

Answer:

I am not sure how about you figure it out maybe study

8 0
3 years ago
What is the solution to this equation 1/2n^2+18=0
ololo11 [35]

Answer:

n = ±6 .

Step-by-step explanation:

A quadratic equation is given to us and we need to find out the solution of the given equation . The given equation is ,

\rm\implies -\dfrac{1}{2}n^2+18=0

Subtracting 18 both sides ,

\rm\implies -\dfrac{1}{2}n^2 = -18

Multiplying both sides by -2 ,

\rm\implies -2\times\dfrac{1}{2}n^2 = -2\times -18

On simplyfing , we get ,

\rm\implies n^2= 36

Putting squareroot both sides ,

\rm\implies n= \sqrt{36}

This equals to ,

\rm\implies \boxed{\quad\blue{\rm n =\pm 6 }}

<u>Hence</u><u> the</u><u> </u><u>value</u><u> of</u><u> </u><u>n </u><u>is </u><u>±</u><u>6</u><u> </u><u>.</u>

6 0
3 years ago
You decide to work part-time at a local veterinary hospital. The job pays $9.50 per hour and you work 20 hours per week. Your em
nadezda [96]

Answer:

a. Weekly Gross pay:

= 9.50 * 20

= $190

b. Federal tax withheld:

= 10% * 190

= $19

c. FICA Tax withheld:

= 5.65% * 190

= $10.74

d. State tax withheld:

= 5% * 190

= $9.50

e. Weekly net pay

= Gross pay - taxes

= 190 - 19 - 10.74 - 9.50

= $150.76

f. Percentage withheld for taxes:

= (19 + 10.74 + 9.50) / 190 * 100%

= 20.7%

8 0
3 years ago
In 20 minutes a heart can beat 700 times. At this rate in how many minutes will a heart beat 140 times at what rate can a heart
murzikaleks [220]
4900 is the answer :)
5 0
3 years ago
(F+g)(6) (<br> f+g) 7x+8
pashok25 [27]
I am honestly not sure about this answer... try Khan Academy. Or, try breaking it down into steps.

I hope this helped... sorry about that. I will try this concept soon. :)
6 0
3 years ago
Other questions:
  • At a pizza shop, 80% of the customers order a pizza, 15% of the customers
    13·1 answer
  • Mai has a bookcase with 6 shelves. There are c books on each shelf. Using c, write an expression for the total number of books.
    8·2 answers
  • Is 3pi rational or irrational I keep getting mixed answers.​
    5·2 answers
  • The arc corresponding to a central angle of 125 degrees in a circle of radius 10 feet measures _____ feet. Round your answer to
    9·2 answers
  • Marty makes $1,050 weekly working as a plumber. After being hit by a car, he requires back surgery. Marty is billed $145,000 for
    12·1 answer
  • What’s the slope of the line graphed below?
    15·1 answer
  • Need DESPERATE help! I'm taking a unit test for math (k12, 10th grade) I got 3 done already so here's the ones I missed: Questio
    5·1 answer
  • What Islamic cultural characteristics were spread by trade during the medieval times?
    13·2 answers
  • All muntiple of 5 is an odd number true proposition?​
    8·2 answers
  • On Elisa's birthday, her mom made a chocolate cake. After the party, 2/3 of the cake was left. The next day, Elisa ate 1/3 of wh
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!