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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 )

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Answer:

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Answer:

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Step-by-step explanation:

AB is tangent to the circle k(O), then AB⊥BO. If the measure of arc BD is 110°20', then central angle ∠BOD=110°20'.

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