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
harkovskaia [24]
4 years ago
10

Substitutions 1.x + 4y = 6 y = -x + 3 2.x + 2y = 6 x - y = 3

Mathematics
1 answer:
SOVA2 [1]4 years ago
3 0
1x + 4 (-×+3) = 6
1× -4× + 12 = 6
-3× = -6
× = 2

2× +2y = 6
× - y = 3
multiply second equation by 2x - 2y = 6
now add equations
4x = 12 so x = 3. substitute 3 - y = 3 so y is 0. check in first equation 2×3 + 2×0 = 6. 6+0= 6
You might be interested in
2. Sandy made several investments. She bought 1000 shares of a company’s stock for $8.60/share, she bought a bond with a face va
vampirchik [111]
The stock price per share was $8.60
Number of shares bought 1000
Total price for the shares:
(Cost per share)*(Number of shares)
=8.60*1000
=$8600

The stock price after 1 year $9.15
Total number of shares is 1000
Current price=(current share price)*(number of shares)
9.15*1000
=$9150
current value=(Current price)-(buying price)
=9150-8600
=$550

Net Profit=(Current value)-(Expenses)
=550-14
=$536
6 0
3 years ago
help dew in 5 minutes I will mark as brainliest Calculate the mean absolute deviation of the electric bills for Family A. Round
sashaice [31]

Answer:  answer will be 72.50. To find the mean you just add up all the numbers and divide by how many numbers are there. 870.02/12=72.501666667.

4 0
3 years ago
Explain when to use Mental Math
I am Lyosha [343]
It is best to use mental math with some equations (5x5 or something that is easy enough that work does not have to be shown 10 dived by 5
3 0
3 years ago
What is the length of the hypotenuse of triangle ABC? Round your answer to the nearest tenth. A) 2.5 m B) 4.3 m C) 5.5 m D) 18.2
Natasha2012 [34]
Hypotenuse= \sqrt{1.5^{2}+ 4^{2}  }
=4.27
7 0
3 years ago
A train leaves the station traveling west at a constant rate of 45 mph. An express train leaves the same station 1 hour later he
Dahasolnce [82]
The train will have been traveling for 4 hours 


train A=45,90,135, 180
train B=0,60,120,180

7 0
3 years ago
Read 2 more answers
Other questions:
  • Look at this equation 1/2(x+1)=2what is the four step process to find the solution to this equation
    14·1 answer
  • 16) A company has found that its expenditure rate per day (in hundreds of dollars) on a certain type of job is given by E'(x) =
    8·1 answer
  • Timothy periodically purchases bonds issued by Prince Waste Collection. Last year, he bought two bonds in February, two bonds in
    9·2 answers
  • Help pls it’s due tomorrow helpp
    15·1 answer
  • Using the X Method to Factor a Trinomial
    5·1 answer
  • 6. If y = 4 1/4 whenx = 3/4 find y when x=4 1/2​
    7·1 answer
  • Can someone help quick
    7·1 answer
  • The gates for a concert opened 1 hour before the concert began. Six minutes
    13·1 answer
  • Which caculation and answer show how to convert 3/12 to a decimal?
    11·1 answer
  • Two increased by a number is dozen. Find the number.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!