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
Maslowich
3 years ago
15

Solve by the elimination method. Show your work 2x – 5y = 1 3x – 4y = -2

Mathematics
1 answer:
svlad2 [7]3 years ago
3 0
Hello,

2x-5y=1 |3|4
3x-4y=-2|-2|-5
------------------------

-7y=7 ==>y=-1
-7x=14==>x=-2

sol={(-2,-1)}

You might be interested in
Please can you give me help with answers. Thanks
Margaret [11]
1) 110+30+a = 180
a = 180-140 = 40
Obtuse angled triangle

2) 50+50+C = 180
C=180-100 =80
Acute angled triangle

3) 45+45+b =180
b =180-90 = 90 
Right angled triangle

4) 45+60+C = 180
C = 180-105 =75 
Acute angled triangle

5) 94+47+b =180
b = 180-141=39

Obtuse angled triangle

6)81+53+a = 180
a =180-134 = 46

Acute angled triangle

7) 38+45+b =180
b = 180-83 =97
Obtuse angled triangle

8) 36+54+C =180
C =180-90 = 90

Right angled triangle.
5 0
3 years ago
Help me or I will <br> J f. Fxou
kkurt [141]

Answer

Step-by-step explanation: cube

8 0
3 years ago
What is the solution to this inequality?
Snezhnost [94]

Answer:

  • \boxed{\sf{D. \quad x < 3}}

Step-by-step explanation:

It is necessary to isolate the term of x from one side of an inequality to find its solution.

<h3>-4x-8>-20</h3>

<u>First, add by 8 from both sides.</u>

\sf{-4x-8+8 > -20+8}

<u>Solve.</u>

-20+8=-12

<u>Rewrite the problem down.</u>

\sf{-4x > -12}

<u>Multiply by -1 from both sides.</u>

(-4x)(-1)<(-12)(-1)

<u>Solve.</u>

<u>Multiply the numbers from left to right.</u>

(-12)(-1)=12

4x<12

<u>Divide by 4 from both sides.</u>

4x/4<12/4

<u>Solve.</u>


<u>Divide the numbers from left to right.</u>

12/4=3

<u>x<3</u>

  • <u>Therefore, the correct answer is D. x<3 (last option).</u>

I hope this helps you! Let me know if my answer is wrong or not.

5 0
2 years ago
Read 2 more answers
I need help with 17 to 24 ... please help
Snowcat [4.5K]
17.144, 18.13 19.728,
8 0
3 years ago
Read 2 more answers
Racer and J. Michael are both training for the 1600 meter run. Last
aleksley [76]

Answer:

a lot

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • Which system of inequalities is represented by the graph? A. {y≥1y−x 0 C. {y≤1y−x 0
    14·2 answers
  • If x+y=2 and x-y=1 then:
    9·1 answer
  • 240 decreased 15%<br>Percent of change
    13·1 answer
  • 4.13 rounded to one decimal point
    8·2 answers
  • 75,000 = _____ tens<br>please answer
    14·1 answer
  • Which choice is equivalent to the quotient shown here when x is greater than or equal to 0?
    6·1 answer
  • Please help!!!!!<br>Solve the equation 5(2y - 1) - 2(3y)= 1<br>​
    8·1 answer
  • Line segment GH has endpoints at G(4,-8) and (-2,6). What is the midpoint of the line segment GH
    12·2 answers
  • A certain standardized test measures students’ knowledge in English and math. The English and math scores for 10 randomly select
    9·1 answer
  • Suppose f(x)= x? - 6r? +9x and g(x)=10x-6.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!