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
AleksAgata [21]
3 years ago
13

Solve the following system of equations for x:

Mathematics
1 answer:
nikitadnepr [17]3 years ago
3 0

Answer:

x=0.5

Step-by-step explanation:

2x+y= -2

and

4x+y= -8 so...

2x+y= -2 = 4x+y= -8

2x+4x= 6x

y+y=2y

-2+-8= -10

6x+2y= -10

2y- -10= 12

6x=12

6/12=0.5

x=0.5

You might be interested in
Please help it is due in 10 minutes​
Otrada [13]

Answer:

1.  X= 4

2.  X= 1

3. X= 3

4. X= 5

5. X= 7

6. X= -3/4

7. X= 6

8. X= 5

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Please help me idk this
Sergio [31]
First take the fractions and find their common denominator:
\frac{1}{2} x 4 =\frac{4}{8}

Now you can add the fractions:
\frac{4}{8} + \frac{1}{8} = \frac{5}{8}

Now add your whole numbers and the fraction:
1+1= 2 >> 2+\frac{5}{8} = 2\frac{5}{8} yards

Now subract 2\frac{5}{8} from 5:
5-2\frac{5}{8} =2\frac{3}{8} yards
4 0
3 years ago
Read 2 more answers
IF A SUBSCRIPTION IS $499 PLUS 8% TAX FOR 30 DAYS, BUT IS BEING PRORATED FOR 7 DAYS, PLUS THERE IS A $10 OFF COUPON, WHAT'S THE
ELEN [110]

Answer:

Your final answer is $528.92

Step-by-step explanation:

499 + 8\% = 538.92

538.92 - 10 = 528.92

5 0
3 years ago
Read 2 more answers
Make y the subject to the following questions
skelet666 [1.2K]
In this question it basically wants you to leave Y alone in a side of the equation.

In this case,
For 3y=c

y=\frac{c}{3}

For Ay=w

y=\frac{w}{A}

For Y/c=w
Y=cw

For y/a=2c
y=2ac

For a=y+p
y=a-p

For C=y-k
y=C+k

5 0
2 years ago
Select the appropriate technique with the problem you are looking for.
Alenkinab [10]

Answer:

A, B, C, D

Step-by-step explanation:

(A) Checking the Equal Variance Assumption, the appropriate technique to use is:

- The ANOVA (Analysis of Variance) F test

- Plot residuals against fitted values

(B) Checking the Normal Assumption, the appropriate techniques to use are:

- Test for Kurtosis & Skewness

- Kolmogorov-Smirnov Test

- Q-Q Plots (the graphical method) also known as Quantile Plot

- Do not use a histogram; it is not advisable

(C) Checking for Model Misspecification, the appropriate techniques to use are:

- The Ramsey Regression Specification Error Test; also called RESET

- The Davidson & MacKinnon J. Test

(D) Checking for dependent errors, the appropriate technique to use is:

- Plot residuals against time variables

6 0
2 years ago
Other questions:
  • The local high school football team, the Falcons, has a contest where seven letters F, A, L, C, O, N, and S are printed in rando
    9·1 answer
  • Which of the following segment is a diameter of O
    15·2 answers
  • ∆ABC is an isosceles triangle in which angles B and C are congruent.
    5·2 answers
  • Andy loves taking notes. He started the school year with 45 pages of notes from last year and he plans to take 2 pages of notes
    7·1 answer
  • A surveyor is 40m from the edge of a building. The angle of elevation from the surveyor to the top of the building is 55° . What
    8·1 answer
  • What is the next term of the geometric sequence? 5, 15, 45,
    15·1 answer
  • A recent drug survey showed an increase in use of drugs and alcohol among local high school students as compared to the national
    15·1 answer
  • Find the equation of a line that passes through the points (1,-5) and (3,-6).
    8·1 answer
  • For each point on the unit circle, select the angle that corresponds to it.
    7·1 answer
  • If there are 48 boys and 56 girls in a room, fill out all of the possible ratios of boys to girls that could be made
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!