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
pshichka [43]
3 years ago
14

Which system of equations has a solution of approximately (1.8,-0.9)

Mathematics
2 answers:
Solnce55 [7]3 years ago
3 0

Solve the equation systems or set the values x = 1.8 and y = -0.9 on the equation and check the equality.

A.

6x - 5y = 15

L = 6(1.8) - 5(-0.9) = 10.8 + 4.5 = 15.3

R = 15

L ≈ R

x + 2y = 0

L = 1.8 + 2(-0.9) = 1.8 - 1.8 = 0

L = R

B.

4x + 5y = 8

L = 4(1.8) + 5(-0.9) = 7.2 - 4.5 = 2.7

R = 8

L ≠ R

C.

x - 2y = 4

L = 1.8 - 2(-0.9) = 1.8 + 1.8 = 3.6

R = 4

L ≈ R

4x + 5y = 8

L = 4(1.8) + 5(-0.9) = 7.2 - 4.5 = 2.7

R = 8

L ≠ R

D.

6x - 5y = 15

L = 6(1.8) - 5(-0.9) = 10.8 + 4.5 = 15.3

R = 15

L ≈ R

x - 2y = 4

L = 1.8 - 2(-0.9) = 1.8 + 1.8 = 3.6

R = 4

L ≈ R

We have two probability solutions: A and D.

But I think, Your answer is A.

Andrews [41]3 years ago
3 0

A.


6x - 5y = 15


L = 6(1.8) - 5(-0.9) = 10.8 + 4.5 = 15.3


R = 15


L ≈ R


x + 2y = 0


L = 1.8 + 2(-0.9) = 1.8 - 1.8 = 0


L = R


B.


4x + 5y = 8


L = 4(1.8) + 5(-0.9) = 7.2 - 4.5 = 2.7


R = 8


L ≠ R


C.


x - 2y = 4


L = 1.8 - 2(-0.9) = 1.8 + 1.8 = 3.6


R = 4


L ≈ R


4x + 5y = 8


L = 4(1.8) + 5(-0.9) = 7.2 - 4.5 = 2.7


R = 8


L ≠ R


D.


6x - 5y = 15


L = 6(1.8) - 5(-0.9) = 10.8 + 4.5 = 15.3


R = 15


L ≈ R


x - 2y = 4


L = 1.8 - 2(-0.9) = 1.8 + 1.8 = 3.6


R = 4


L ≈ R

Yeah so your answer is gonna be

<em>A.</em>



You might be interested in
Solve for x. Please help quick, it’s my last question for my test
Sladkaya [172]

Answer:

x = 9

Step-by-step explanation:

84 + (7x + 5) + (180 - (17x-1)) = 180

84 + 7x + 5 + (181 - 17x) = 180

270 + (-10x) = 180

90 = 10x

x = 9

3 0
2 years ago
Write and solve an equation to find your final score. Use x to represent your final score.
attashe74 [19]
Let your final bowling score be x. It is 14 pins less than your friends final score. Your friends final bowling score is 105. Then x is 14 pins less than 105.
1 way: This means that 105 is greater than x by 14. Mathematically,
105-x=14,
-x=14-105,
-x=-91,
x=91.
2 way: When you add 14 to x, you'll get 105.
x+14=105,
x=105-14,
x=91.
Answer: Your final score is 91.
8 0
2 years ago
Can someone please help me?
oksano4ka [1.4K]
1) 12
2) 2y
3) 12+2y
4) 12+2y
8 0
2 years ago
Read 2 more answers
Simplify these fraction 9 1/3-5 3/4
poizon [28]

Answer : 3 7/12

Hope it helps yah (◕ᴗ◕✿)

8 0
2 years ago
Read 2 more answers
Please help!!!!!!!!!!!
IRISSAK [1]

Answer:

15

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • If (x) = -54 - 4 and g(x) = -3x - 2. find (f - g)(x).
    9·1 answer
  • What is -1 + (4 + 9) = (-1 + 4) + 9 property?
    10·2 answers
  • A study compared paired daytime and nighttime counts of sea trout, lake trout, and rainbow trout made by the same divers in six
    7·1 answer
  • X:8 16 24 32<br> Y:2 12 22 32<br> Is the relationship linear, exponential, or neither?
    5·2 answers
  • The sum of 4 interior angles of a pentagon is 402. Find the measure of the fifth interior angle.
    11·2 answers
  • Can someone please help me with this math assignment?
    12·1 answer
  • It costs $324 to buy a rug that measures 10’ by 12’. If the cost is proportional to the area, what does it cost to buy a 15’ by
    7·1 answer
  • Elaine can travel 63 meters in 3 second what is Elaine rate of speed?
    14·2 answers
  • What is 3/4 x 2 2/9 in fraction form
    8·2 answers
  • Find x in the triangle below. Round your answer to the nearest tenth.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!