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
dlinn [17]
3 years ago
5

URGENT!!!

Mathematics
1 answer:
notka56 [123]3 years ago
7 0

Answer:

Option (d) is correct.

Step-by-step explanation:

The equations are :

-x-2y=-4  .....(1)

3x+y=12 ....(2)

Equation (1) can be rewritten as follow :

-x = -4+2y

x = 4-2y .....(3)

So, to solve the above systems of equations, we must substitute the value of x from equation (3) in equation (2). Hence, the correct option is (D).

You might be interested in
Alan hikes 4.5 miles in 3 hours. Determine whether quantities (distance and time) vary directly or inversely and find the consta
Mrac [35]
V = x/t = 4.5 mil / 3 h = 1.5 mph
Since, v = 1.5 mph (or we can say that v is constant), distance and time vary directly and the constant of variation is 1.5 mph.
3 0
3 years ago
What does A equal? Plz help, I will mark brainliest ASAP!!!
xz_007 [3.2K]

Answer:

57. i hope this helps

6 0
3 years ago
Read 2 more answers
I have a series of 2 questions.
Margarita [4]
1)
I:y=3x-4
II:9x-3y=14


substitute y into II:
9x-3*(3x-4)=14
9x-9x+12=14
12=14

this is obviously not equal so there is no solution, the lines are parallel

2)
I:y=4x+6
II:5x-y=6

substitute y into II:
5x-(4x+6)=6
5x-4x-6=6
x=12
substiute x into II:
5*12-y=6
-y=6-60
-y=-54
y=54

the solution is (12,54)
3 0
3 years ago
What are the solutions of the quadratic equation p^2+3p-28=40
vivado [14]

Answer:

the answer is  =-3±\sqrt{281}/2

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
There are 2 sets of balls numbered l through 19 placed in a bowl. If 2 balls are randomly chosen without replacement, find the p
Sergio039 [100]

Answer:

0.027027

Step-by-step explanation:

2 x 19= 38

38C2=703

19/703=0.027027

You

8 0
3 years ago
Other questions:
  • Jim Lee received his bank statement from Bayne Bank indicating a balance of $7,980. Lee's checkbook showed a balance of $6,800.
    6·1 answer
  • 1. Write true or False: Every Whole number is a Multiple of one, Explain
    6·2 answers
  • The fact family model represents 6 + 5 = 11.
    7·1 answer
  • This Is My Last Question And I'm Giving 20 Points
    15·1 answer
  • Colin was thinking of a number. Colin subtracts 5 from it and gets an answer of 10.7. What was the original number?
    6·1 answer
  • Answer this please !!!!!
    12·2 answers
  • A: 28, 23,30, 25, 27
    6·1 answer
  • What does CPCTC represent and when would you use it?
    8·1 answer
  • (b) Find the sum of first twenty terms of the following arithmetic progressions A.P
    12·1 answer
  • An object is moving at a speed of 9 inches per minute. Express this speed in yards per month.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!