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
Alik [6]
3 years ago
5

What should be the first step in adding these equation to eliminate y 12x - 2y = -1 + 4x + 6y =-4

Mathematics
1 answer:
barxatty [35]3 years ago
6 0

Answer:

See below

Step-by-step explanation:

<u>Assumed you need to solve the system:</u>

  • 12x - 2y = - 1
  • 4x + 6y = - 4

In order to solve this by elimination, triple the first equation and add the second one.

<u>It will make the coefficients of y same with opposite signs:</u>

  • -6y and 6y

When added together these cancel, leaving x as the only variable.

You might be interested in
What is 88 tens minus 20 tens ?
Nataliya [291]
88 tens = 880
20 tens = 200

880 - 200 = 680
8 0
3 years ago
Find simple interest on $5,523 principal deposited for seven years at a rate of 4.99%
Whitepunk [10]
I=PRT
I=interest
P=initial amount
R=rate in decimal
T=time in years

given
P=5523
R=4.99%=0.0499
T=7

I=(5523)(0.0499)(7)
I=1929.1839
round

$1929.18 interest earned
8 0
3 years ago
Read 2 more answers
The question is in the image. ( please answer ASAP)
Zolol [24]

Answer:

A.

male long sleeves: 3

Male short sleeves: 0

male rolled up sleeves: 2

Female long sleeves: 0

Female short sleeves: 2

Female rolled up sleeves: 1

B. 0/3

C. 2/5

Step-by-step explanation:

8 0
3 years ago
PLEASE HELP
Law Incorporation [45]
None of these are correct, however of the ones you listed, A would be the most likely to be correct. y is greater than 3... therefore making y a number greater than zero.
6 0
3 years ago
I need the function for the volume of the box for number 1
rjkz [21]

Answer:

Step-by-step explanation:

The volume of a rectanguiar shape like this one is V = L * W * H, where the letters represent Length, Width and Height.  Here L is the longest dimension and is 28 - 2x; W is the width and is 22-2x; and finally, x is the height.  Thus, the volume of this box must be

V(x) = (28 - 2x)*(22 - 2x)*x

and we want to maximize V(x).  

One way of doing that is to graph V(x) and look for any local maximum of the graph.  We'd want to determine the value of x for which V(x) is a maximum.

Another way, for those who know some calculus, is to use the first and second derivatives to identify the value of  x at which V is at a maximum.

I have provided the function that you requested.  If you'd like for us to go all the way to a solution, please repost your question.

3 0
2 years ago
Other questions:
  • Hawthorne Middle School has 198 laptops
    15·1 answer
  • (IMPORTANT PLEASE ANSWER)You are using a hose to fill up your backyard swimming pool on a hot day. Water flows out of the hose a
    14·2 answers
  • The question is “Mike purchased 3 DVDs and 14 video games for $203. Nick went to the same store and bought 11 DVDs and 11 video
    13·1 answer
  • At 12pm there are 855 people in the zoo. By 5pm ⁴/₅ of the children have left and ³/₄ of the adults have left. There are now 36
    10·1 answer
  • IN NEED OF ANSWER :( A flower bed is in the shape of a triangle with one side twice the length of the shortest​ side, and the th
    9·1 answer
  • The denominator of a fraction in the simplest form is greater than the numerator by 1. If 4 is added to the numerator, and 3 is
    13·1 answer
  • 12+2(6 divided by 2/3) + 3.75
    9·1 answer
  • I have 30 minutes to complete this and im stuck so pls help out
    13·2 answers
  • What is the equation of the line shown written in slope-intercept form?
    15·2 answers
  • Can someone help me with this problem ?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!