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
kherson [118]
3 years ago
9

EASY MATHS PLS HELP​

Mathematics
2 answers:
Goshia [24]3 years ago
5 0

Answer:

The value of x is 5/4 and y is -5.

Step-by-step explanation:

  1. Firstly, you have to make the 1st equation as (1)<em> </em>and make 2nd equation as (2).
  2. Secondly, you have to elimimate one of the variable. I choose to eliminate x in order to get rid of x, I add (1) and (2) together as -4x+4x = 0.
  3. Thirdly, you can solve the value of y. Then after getting y value, you can substitute y value into any equation. I choose to put y value into (1).
  4. Lastly, you can solve the equation to get x value.
  5. THE ANSWER IS OUT !!☝️☝️

Fofino [41]3 years ago
3 0

Answer:

(1.25, - 5 )

Step-by-step explanation:

Given the 2 equations

- 4x + 3y = - 20 → (1)

4x + 2y = - 5 → (2)

Adding the 2 equations term by term will eliminate the x- term

5y = - 25 ( divide both sides by 5 )

y = - 5

Substitute y = - 5 into either of the 2 equations and solve for x

Substituting into (2)

4x + 2(- 5) = - 5, that is

4x - 10 = - 5 ( add 10 to both sides )

4x = 5 ( divide both sides by 4 )

x = \frac{5}{4} = 1.25

Solution is (1.25, - 5 )

You might be interested in
1. What is the value of h? (1 point)
irinina [24]

The value of h is 11.3.

Solution:

Given data:

The triangle is a right triangle.

θ = 45° and opposite side of θ = 8

The value of sin 45° = \frac{1}{\sqrt{2} }

Using trigonometric formula,

$\sin\theta=\frac{\text{Opposite side}}{\text{Hypotenuse}}

$\sin45^\circ=\frac{{8}}{h}

$\frac{1}{\sqrt{2} } =\frac{{8}}{h}

Do cross multiplication.

h = 8\sqrt 2

h = 11.3

The value of h is 11.3.

7 0
3 years ago
The speed limit near Marjorie's house is 30 miles per hour.
Bess [88]
The answer is 48 km/hr
7 0
3 years ago
DVDs are on sale for $29 each. Felipe writes the expression 2 x 29 to find the cost in dollars of buying 2
Diano4ka-milaya [45]

Answer:

1(29 + 29)= a

Step-by-step explanation:

If the DVD costs 29$, and he buys 2, then you will just add them and multiply them by one.

6 0
3 years ago
Write an equation of the line
stellarik [79]
Y = -2 + 6 should be the equation
5 0
3 years ago
A conversion factor can be written _________ different ways. How do you select the most appropriate conversion factor?
DochEvi [55]

Answer:

can be written two ways

Step-by-step explanation:

A conversion factor is written based on the equality between the two units

5 0
3 years ago
Read 2 more answers
Other questions:
  • Q8: These Triangles are similar. What is the value of X?
    8·1 answer
  • Damien wants to deposit $1200 into savings accounts at three different banks: Bank of Chance, Merchant Bank, and Utopian Financi
    12·2 answers
  • Please help!!! Correct answer will get brainliest! A chemist needs 10 liters of a 10% alcohol solution but has only a 25% alcoho
    7·1 answer
  • State the coordinates of this point​
    9·2 answers
  • (3 1/2 - 9 3/4) ÷ (-2.5)
    13·1 answer
  • How long does it take an account with a principal of $600 to earn $90 in interest at a simple annual interest rate of 5%
    10·1 answer
  • What is the reciprocal of 7/12
    8·2 answers
  • hii how are yall doing me im ok ig.... i.dk anymore also plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz help ty
    14·1 answer
  • <img src="https://tex.z-dn.net/?f=-2cos%5E%7B2%7D%20x-6sinx-1%3D0" id="TexFormula1" title="-2cos^{2} x-6sinx-1=0" alt="-2cos^{2}
    8·1 answer
  • A Triangle
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!