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
Dmitriy789 [7]
3 years ago
8

Solve the system of linear equations by substitution. 4x−2y=14 y=12x−1

Mathematics
1 answer:
Alexus [3.1K]3 years ago
3 0

Answer:

The answer is (-0.7, -9.4)

Step-by-step explanation:

1) Since we are using the substitution method, and we know that y = 2x-1, in the first equation, plug that into y.  It should look like this:

4x-2(12x-1) = 14

4x -24x + 2 = 14

2) Combine like terms and continue to simplify until you get a direct answer for each variable.

-20x + 2 = 14.

-20x = 12.

x = -7/10 (or -0.7)

3) Now we know what x equals, so to find our y-coordinate, we will plug this into either equation.

y = 12(-7/10) -1

y= -84/10 -1

y= -9.4

4) Now that we have our x value and y value, we know our point. The solution is (-0.7, -9.4).

You might be interested in
The scores on a test given to all juniors in a school district are normally distributed with a mean of 79 and a standard deviati
ludmilkaskok [199]

Answer:

p (x -<-89) = p( _x_-_75_ < _ 89_- __75__) = p (z <_ 2) = 0.9773= 97.73%

7 7

hope i helped u today and hope the best on it good luck :)

hope to have a Brainliest !!

have a good as day!

5 0
3 years ago
an airport charges an additional fee for a piece of luggage that weighs more than 50 lbs write an inequality that shows the weig
nekit [7.7K]

Answer:

X ≤ 50

Step-by-step explanation:

Since the additional fee for a piece of luggage is only charged if it weighs more than 50 lbs, than Michael's suitcase weight must be less than, or equal to, 50 lbs.  Using 'X' as the weight of Michael's suitcase in pounds:

X ≤ 50

'X' is less than or equal to 50 lbs

4 0
3 years ago
A parallelogram has an area of 100 square units. Its perimeter is
Nonamiya [84]

good morning ☕️

___________________

Step-by-step explanation:

—Dimension1 =25 and dimension2 =4

Area=25*4=100

Perimeter=2(25+4)=2(29)=58.

—-Dimension1 =12.5 and dimension2 =8

Area=12.5*8=100

Perimeter=2(12.5 + 8)=2(20.5)=41

:).

4 0
4 years ago
Two products when calcium carbonate is heated
erik [133]

Answer:

When heated calcium carbonate forms calcium oxide and carbon dioxide.

7 0
3 years ago
Read 2 more answers
The selling price of a refrigerator is $584. If the markup is 25% of the dealers cost, what is the dealer’s cost of the refriger
viva [34]

If you mark up 584 by 25%, you get 730. Therefore, the price of the refrigerator after the markup is $730.

5 0
3 years ago
Other questions:
  • Tayler has $320$320 to pay for dining room chairs. She expects to pay about $80$80 per chair. Her friend told her that she has 3
    8·2 answers
  • You have been given the task of finding out what proportion of students that enroll in a local university actually complete thei
    5·1 answer
  • Five children have £23.09 altogether. Three children have between £5 and £6,and 2 have between £3 and £4. How much could they ea
    9·2 answers
  • Divide and answer in simpilist form: 1/2 ÷4​
    8·2 answers
  • joe buys a new stereo for $875 and pays for it over two years with 6.5% simple interest. what is his monthly payment?
    14·1 answer
  • BRAINLIEST PLEASE FIND THE AREA
    9·2 answers
  • Given the function h(x)=x2+6x+6h(x)=x^2+6x+6h(x)=x2+6x+6, determine the average rate of change of the function over the interval
    9·1 answer
  • Fifty people in the civilian labor force are randomly selected and the sample average age iscomputed to be 36.4.(a) Find a 90% c
    9·1 answer
  • a grocery store sells 24 basket of bananas for a total of $192 each basket contains 31 bananas. rounded to the nearest cent what
    9·1 answer
  • Find the midpoint of segment when A is at (-14,3) and B is at -2,-1)
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!