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
AlladinOne [14]
3 years ago
8

Solve the following system of equations -3x+2y=8 6x-2y=-20

Mathematics
1 answer:
Elanso [62]3 years ago
6 0
2 [-3x+2y=8]
6x-2y=-20

-6x + 4y = 16
6x - 2y = -20
2y = -4
y = -2

use the first eq (u can use any) then substitute the value of y

-3x + 2(-2) = 8
-3x -4 = 8
-3x = 12
x = -4

You might be interested in
Find the midpoint between -7+4i and 3-2i
lana [24]
(-2,3) i believe this is correct
6 0
3 years ago
Hiiioo! Hope everyone is having a good day! Can someone please help with this!❤️❤️❤️❤️:D
My name is Ann [436]

Answer:

AA

Step-by-step explanation:

6 0
3 years ago
Ron's piano lesson starts in 2 hours. It takes him 30 minutes to get to the lesson. He has
RideAnS [48]

Answer:

2 hours=120 mins

120-(45+25)

120-(70)

50

Ron has enough time to finish his homework and walk the dog before his lesson. Ron should overestimate the total time needed. Since Ron has 50 minutes to spare he could add 25 to home work time and another 25 to walking his dog. he still ha time to do both.

4 0
3 years ago
et f(x) = x + |2x − 3|. Find all solutions to the equation f(x) = 12. (Enter your answers as a comma-separated list. If an answe
Alinara [238K]

Answer:

1. {5,-9}

2.{4}

3.{9/2}

Step-by-step explanation:

The equation f(x)=x+\lvert 2x-3 \rvert=12 can be solved as follows:

x+\lvert 2x-3 \rvert =12\,\,\,\text{(given equation)}

\lvert 2x-3 \rvert =12-x

2x-3=12-x\,\,\text{or}\,\,2x-3=-(12-x)

3x=15\,\,\text{or}\,\,\x=-9

Then, the solutions of the equation are x=5, x=-9.

Now, if g(x)=5x-3+\lvert x+4\rvert, we can solve the equation g(a)=4a+9 as follows:

5a-3+\lvert a+4 \rvert =4a+9

\lvert a+4\rvert =4a+9-5a+3

a+4 =-a+12\,\,\text{or}\,\,a+4=-(-a+12)

2a=8\,\,\text{or}\,\,4=12

So, the unique solution of this last equation is a=4

The last equation is h(x-1)=x-3, where h(x)=\lvert x \rvert -2x+5.. To solve this equation we can proceed as follows:

h(x-1)=x-3

\lvert x-1\rvert -2(x-1)+5=x-3

\lvert x-1 \rvert -2x+2+5=x-3

\lvert x-1\rvert =3x-10

x-1=3x-10\,\,\text{or}\,\,x-1=-(3x-10)

-2x=-9\,\,\text{or}\,\,4x=11

x=9/2\,\,\text{or}\,\,x=11/4

But, x=11/4 is not a solution of this equation. So the unique solution is x=9/2.

8 0
3 years ago
In this parallelogram. the measure of
balu736 [363]
Consecutive angles are supplementary (A + D = 180°). If one angle is right, then all angles are right. The diagonals of a parallelogram<span> bisect each other. Each </span>diagonal of a parallelogram separates it into two congruent triangles.<span> A square has got 4 sides of equal length and 4 right </span>angles<span> (right </span>angle<span> = 90 degrees). Since ALL the </span>angles<span> in a</span>quadrilateral add up<span> to 360 then 360 divided by 4 must be 90.</span>
4 0
3 years ago
Other questions:
  • Which equation represents a circle with a center at (2,-3) and a radius of 11
    8·1 answer
  • An olympic hurdler accelerates at a rate of 15.5 m/s2 . what is the rate in miles/min2 ? 1. 6.89 miles/min2 2. 31.8 miles/min2 3
    14·1 answer
  • E = {1, 2, 3}
    12·1 answer
  • For a moving object, the force acting on the object varies directly with the object's acceleration. When a force of 18 N acts on
    5·1 answer
  • Help please I’ll give brainliest
    12·1 answer
  • PLEASE PLEASE PLEASE HELP
    5·1 answer
  • $115. Today, the price rose to $161. Find the percentage increase.<br> $<br> ?
    11·1 answer
  • {{{{Help Please please}}}}
    13·1 answer
  • Help me pls this is hard
    14·1 answer
  • X-1=0 pls answer me I'll give u 10 points
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!