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
PIT_PIT [208]
2 years ago
5

NEED HELP ASAP. WILL GIVE BRAINLY

Mathematics
1 answer:
balu736 [363]2 years ago
5 0

Answer:

A. x = 2 and y =2

B. x = 3 and y = -1

Step-by-step explanation:

A. { x = 3y − 4

    2x − y = 2

1) Substitute the value of x

2(3y − 4) − y = 2

2) Solve the equation for y

y = 2

3) Substitute the value of y

x= 3(2) -4

4) Solve the equation for x

x = 2

Final Solution: x = 2 and y =2

B. { 3x + 2y = 7

     −x + y = −4

1) Multiply both sides of the equation by 3

-3x + 3y = -12

2) Eliminate one variable by adding the equations

  3x + 2y = 7

<u>+ (−3x + 3y = −12)</u>

   5y = -5

3) Divide both sides of the equation by 5

y = -1

4) Substitute the given value of y into the equation -x + y = -4

-x + (-1) = -4

5) Solve the equation for x

x = 3

Final Solution: x = 3 and y = -1

You might be interested in
PLZ ANSWER APSP IM IN THE TEST RN!!!
olchik [2.2K]

Answer:

x = 38

y = 25

Step-by-step explanation:

To find x, you do

(2x + 5) = (3x - 33)

Subtract 2x from both sides to isolate x on one side, you get:

5 = (x - 33)

Add 33 to both sides to separate the normal number from the x, you get:

38 = x

From there, you plug x into one of the equations

2(38) + 5

The answer's 81, meaning that angle is 81 degrees. Using supplementary angles, you can find that angle ACD = 99, which you can use to find angle BCE. You'll get this equation:

(4y - 1) = 99

Add one to both sides to get rid of it, you get:

4y = 100

Divide by four, to get the y all alone:

y = 25

I hope this helped!

8 0
3 years ago
Read 2 more answers
Solve for g. C = d/g
icang [17]

Answer:

I believe that g=dc

Step-by-step explanation:

You swap positions with g and c along with their sign of operation.

7 0
3 years ago
Find the value of a and b if √5-1/√5+1=a+b√5
timurjin [86]

Answer:3/2-(√5)/2

Step-by-step explanation:

4 0
3 years ago
Write an expression for the operation described below <br> 4 increased by P
exis [7]
Wouldn’t it be 4^P

i light be wrong
8 0
2 years ago
When creating vases for the craft fair, Thomas used the proportion 3 pounds of clay is to 8 vases as 9 pounds of clay is to 24 v
spayn [35]
<span>The proportion of clay uses is 3/8 (Three Eighths). That is 3 lbs. of clay to every 8 vases. This is determined by the first given proportion 3 lbs./8 vases and confirmed by the second. To prove that is the case you divide the second ration by the first numerator: 9 divided by 3 = 3 and 24 divided by 3 = 8. So the proportion for 9/24 is still 3/8. This can also be used to increase the number of vases made. For example if 40 vases need to be made: we divide 40 by the numerator 8 = 5. So we need 5 portions of 3 to make 40 vases. 5 times 3 = 15. So the 15 lbs. of clay is needed for 40 vases.</span>
8 0
3 years ago
Read 2 more answers
Other questions:
  • A restaurant offers the following limited lunch menu:. Main Courses: Beef, Pork Roast, Duck, Quiche. Vegetables: Broccoli, Carro
    5·1 answer
  • The graph shows the relationship between the total cost and the number of erasers bought at the student store. Which statement i
    5·1 answer
  • Mark is taking pledges for bike-a-thon fundraiser. John pledged $2.00, plus $1.75 for each mile Mark bikes. Kiara pledged $5.25,
    13·1 answer
  • What is the side length of an equilateral triangle that has a perimeter of 24.6 cm ?
    14·1 answer
  • An urn contains six red balls and four green balls. A sample of seven balls is selected at random.
    6·1 answer
  • Ms. Graves gave her class 12 minutes to read. Carrie read 5\frac{1}{2} pages in that time. At what rate, in pages per hour, did
    5·1 answer
  • A highway noise barrier is 120 m long is constructed in 2 pieces. One piece is 45 m longer than the other one. Find the length o
    10·1 answer
  • Write 12x – 3y= –24 in slope-intercept form.
    6·1 answer
  • Solve the linear equation by combining like terms: 23 + 7 - 2x = 8x
    5·2 answers
  • PLEASE HURRY WILL GIVE BRAINIESTwhat is the length of BC
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!