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
Tamiku [17]
3 years ago
14

Which of the following ordered pairs represents the solution to the system of equations below?

Mathematics
1 answer:
expeople1 [14]3 years ago
5 0
<span>-3x + 2y = 2  eq (1)

  7x - 3y = 7    eq (2)

Mutiply eq (1) by 3 and eq (2) by 2:

-9x + 6y = 6

14x - 6y = 14

Add th two new equations:

-9x + 14x = 6 + 14

=> 5x = 20

=> x = 20/5

=> x = 4

Now from eq (1)

-3(4) + 2y = 2

=> 2y = 2 + 12

=> 2y = 14

=> y = 14 / 2

=> y = 7

So the ordered pair is (4,7)

Answer: option B. (4,7)
</span>
You might be interested in
Solve x^2 + 4x + 8 = 0
Mkey [24]

Answer:

x = -2 + 2 i or x = -2 - 2 i

Step-by-step explanation:

Solve for x:

x^2 + 4 x + 8 = 0

Subtract 8 from both sides:

x^2 + 4 x = -8

Add 4 to both sides:

x^2 + 4 x + 4 = -4

Write the left hand side as a square:

(x + 2)^2 = -4

Take the square root of both sides:

x + 2 = 2 i or x + 2 = -2 i

Subtract 2 from both sides:

x = -2 + 2 i or x + 2 = -2 i

Subtract 2 from both sides:

Answer:  x = -2 + 2 i or x = -2 - 2 i

8 0
3 years ago
1. What number is 25% of 20?
algol13

Answer:5

Step-by-step explanation:

20 divided by 4 equals 5

7 0
3 years ago
Read 2 more answers
A small acting club has 4 members. three of the members are to be chosen for a trip to see a broadway play. how many different 3
Gnesinka [82]
I think the answer is 4 different possibility's.
8 0
3 years ago
NEED HELP! Have no idea what his is?? 50 points
soldi70 [24.7K]
Well i have to say is that PEMDAS exponents first. Hope this helps.
5 0
3 years ago
Read 2 more answers
Ramiro is 3/10 as tall as the flagpole. The flagpole is 5/9 as tall as the nearby tree. The tree is 32 2/5 feet tall. How tall i
djyliett [7]
x-\ Ramiro's\ height\\&#10;y-\ Flapole's\ height\\&#10;z-\ nearby\ tree\\\\&#10;x=\frac{3}{10}y\\&#10;y=\frac{5}{9}z \\z=32\frac{2}{5}\\\\\y=\frac{5}{9}*32\frac{2}{5}=\frac{5}{9}*\frac{162}{5}=18\\\\&#10;x=\frac{3}{10}*18=5,4\\\\&#10;Ramiro\ is\ 5,4\ feet\ tall.
8 0
3 years ago
Other questions:
  • Renna pushes the elevator button, but the elevator does not move. The mass limit for the elevator is 450450450 kilograms (\text{
    12·2 answers
  • Bonita said that the product of 5/6* 1 2/3 is 7/3 How can u tell that her answer is wrong
    10·2 answers
  • Allahuakbar eşedüennlee ilahe illallah ve eşşedüenle muhammeden abdühü ve resülüh
    10·1 answer
  • A physiological psychologist has performed an experiment to determine if a particular drug, smartozine, affects maze learning in
    5·1 answer
  • 30 POINTS For Answers To Questions 1-10
    10·1 answer
  • PLSSS HELP!!!! graph the linear equation x=6
    11·2 answers
  • Solve for x<br><br> -3/4(x+2)=6<br><br> X=?
    8·1 answer
  • Jefferson’s class was studying sunflowers. They learned that sunflowers are able to make their own food. Which parts of a sunflo
    12·1 answer
  • Solve for x<br> n= 2x+1 / 2<br><br> x=_____
    15·1 answer
  • while shopping for clothes, Tracey spent 38$ less than 3 times what Daniel spent. write and solve an equation to find how much D
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!