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
Ganezh [65]
2 years ago
15

Find the solution of the system of equations. -10x-y=27 -4x-y=9

Mathematics
2 answers:
AlekseyPX2 years ago
6 0

Answer:

x=−1/10 y+ −27/10

x=−1/4 y+ −9/4

Step-by-step explanation:

−10x−y=27

Step 1: Add y to both sides.

−10x−y+y=27+y

−10x=y+27

Step 2: Divide both sides by -10.

−10x /−10= y+27 /−10

x=−1/10 y+ −27 /10

−4x−y=9

Step 1: Add y to both sides.

−4x−y+y=9+y

−4x=y+9

Step 2: Divide both sides by -4.

−4x /−4= y + 9/−4

x= −1/4 y + -9/4

bogdanovich [222]2 years ago
4 0

Answer:

(-3,3)

Step-by-step explanation:

y=3

x=−3

You might be interested in
what does "relationship" mean in the question, "what is the relationship between 4's in the number 4,400?
FromTheMoon [43]
Its the connection between those numbers
3 0
2 years ago
HELP PLEASE 10 POINTS!!!!!! A country's population in 1993 was 171 million. In 1999 it was 176 million. Estimate the population
Lilit [14]

Let 1993 = time 0 = 0.  

Let 1999 = time 6 = 6  

Let 2012 = time 19 = 19  

So, a = 171 (million). First solve for k.  

176 = 171 e^k6  

176/171 = e^(k*6)  

ln (176/171) = 6k  

k = 1/6 ln (176/171)  

So, in 2012 we have: P(19) = 171 e^(19k), where k = 1/6 ln (176/171)


Hope this helped!

3 0
3 years ago
Please help me. (20 points)
alexandr402 [8]

Hello from MrBillDoesMath!

Answer:

75

Discussion:


A plane triangle has 180 degrees. Using this in the diagram gives  

x + 81 + angle BAC = 180             (***)

(The diagram is a bit fuzzy but I think the above numbers are accurate)

The diagram also shows that  (156 + angle BAC )= 180 as a straight line has 180 degrees. So

angle BAC = 180 - 156 = 24

Substituting this in (***) above gives

x + 81 + 24 = 180 =>

x + 105 = 180   =>               (as 81 + 24 = 105)

x = 180  107 = 75


Check: Does

x + 81 + angle BAC = 180   ?

75 + 81 + 24 = 180.  Yes




Thank you,

MrB

7 0
2 years ago
The last three matches that Gail played lasted 3 and 1/4 hours, 3.4 hours, and 3 and 1/3 hours. Which lists the match length, in
ser-zykov [4K]

3 and 1/4, 3 and 1/3, 3.4

6 0
3 years ago
Help me Please please people I believe you can help me...
Andrei [34K]

Answer:

A.)  9pencils

B.)   6 more Pencils than markers

Step-by-step explanation:

A.)1.08/ 0.12 = 9

B.) 2.18 - 1.08 = $1.10

1.10 / .36 = 3 Markers

HAVE A GREAT DAY!!! :)

8 0
3 years ago
Read 2 more answers
Other questions:
  • Please someone help me and do not just write anything explain thank you . use the information provided to write the vertex form
    11·1 answer
  • Please answer these questions ASAP
    14·1 answer
  • . You and three friends are planning a trip. You want to keep the cost below $90 per person. Write and solve an inequality
    5·1 answer
  • Solve for x<br><br> −6&gt;−30−4x
    11·2 answers
  • If its 12:30what time will it be in 48 hours
    9·1 answer
  • Which of the following describes how to calculate the total investment in a load fund?
    13·2 answers
  • The tenth car traveling on this road breaks down and its being pushed by its owners
    10·1 answer
  • Angle abf is 77 , help please
    5·1 answer
  • Help please, I am begging​
    9·1 answer
  • Which number line shows the solution to the inequality -2x-3&gt; -11
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!