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
Pavlova-9 [17]
3 years ago
15

2x + y = 12 4x - 3y = 2

Mathematics
1 answer:
7nadin3 [17]3 years ago
4 0

Answer:

The value of x for equation is 3.4

The value of y for equation is 5.2  

Step-by-step explanation:

Given as :

The two linear equation are

2 x + y = 12           ........A

4 x - 3 y = 2              .........B

Now, Solving both equations , we get

3 × ( 2 x + y ) + (4 x - 3 y) = 3 × 12 - 2

Or, 6 x + 3 y + 4 x - 3 y = 36 - 2

Or, (6 x + 4 x) + (3 y - 3 y) = 34

Or, 10 x + 0 = 34

∴  x = \dfrac{34}{10}

i.e x = 3.4

So, The value of x for equation , x = 3.4

Put the value of x into eq A

∵ 2 x + y = 12

Or, y = 12 - 2 x

Or, y = 12 - 2 × 3.4

Or, y = 12 - 6.8

∴ y = 5.2

So, The value of y for equation , y = 5.2

Hence, The value of x for equation is 3.4  and The value of y for equation is  5.2   Answer

You might be interested in
I'm doing elimination in systems of equations how do I solve this?????? Help!!!
Eddi Din [679]
X-3y=-5
-(x+3y=1)
-------------
-6y=-6
y=1
x=-2

7 0
3 years ago
Triangle ABC has been reflected over the x-axis to create triangle A'B'C'. Which of the following statements is true?
Leto [7]

Answer:

A ' = (-2, -3)

B ' = (0, -3)

C ' = (-1, 1)

=======================================================

Explanation:

To apply an x axis reflection, we simply change the sign of the y coordinate from positive to negative, or vice versa. The x coordinate stays as is.

Algebraically, the reflection rule used can be written as

Applying this rule to the three given points will mean....

Point A = (-2, 3) becomes A ' = (-2, -3)

Point B = (0, 3) becomes B ' = (0, -3)

Point C = (-1, -1) becomes C ' = (-1, 1)

The diagram is provided below.

Side note: Any points on the x axis will stay where they are. That isn't the case here, but its for any future problem where it may come up. This only applies to x axis reflections.

Step-by-step explanation:

7 0
2 years ago
A recent study suggested that 81% of senior citizens take at least one prescription medication. Amelia is a nurse at a large hos
Lady_Fox [76]

Null hypothesis: p = 0.81

Alternative hypothesis: p \ne 0.81

The null is based on a recent study that 81% of the population (in this case senior citizens) takes at least one medication. The alternative hypothesis is basically the flip of the claim made in the null.

If Amelia wanted to know if the percentage was less than 81%, then the alternative would be p < 0.81

If Amelia wanted to know if the percentage was larger than 81%, then the alternative would be p > 0.81

However, she wants to know if the percentage is 81%.

5 0
2 years ago
Aleka earns her regular pay or $14 per hour for up to 40 hours of work per week. For each hour over 40 hours of work per week, A
iogann1982 [59]
C. 728

14x40=560
14+7=21
21x8=168
560+168=728
3 0
1 year ago
Which expression is equivalent to (5^3)^2
Katarina [22]

Answer:

(5^3)^2 = 5^6 = 15625

<em>good luck, i hope this helps :)</em>

5 0
3 years ago
Other questions:
  • What is the slope of the line represented by the equation y = 4/5x - 3?
    9·2 answers
  • Solve for x. 32xy=w. can you please help with this problem
    11·1 answer
  • What is 4/16 in simplest form?
    11·2 answers
  • A math club has 24 members at the beginning of the school year. Four more people
    5·1 answer
  • Determine whether the given value is a statistic or a parameter. In a study of all 1580 seniors at a college comma it is found t
    11·1 answer
  • Trish is taking care of the hans family dogs. The hans leave 7 cans of dog food for the 3 days theyll be away . How many more ca
    8·1 answer
  • How to find the volume of a prism
    14·2 answers
  • Solve the inequality for x.<br> 22 &gt;x-5
    11·1 answer
  • 1, 3, 9, 27, ... What's the pattern rule and the next three numbers?​
    9·2 answers
  • 16. The art teacher at Valley High School is decorating her class-
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!