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Dafna11 [192]
3 years ago
5

Find an ordered pair that is solution for linear equation 4x-5y=20​

Mathematics
1 answer:
Eduardwww [97]3 years ago
8 0

Answer:

(5,0) is the solution of the given equation.

(0,-4) is the solution of the given equation.

Step-by-step explanation:

Here, the given equation is: 4 x- 5y  = 20

Now, we need to find a value for (x,y) such that the above equation is satisfied.

The ONLY POSSIBLE way to do this is Hit and Trial.

Let us substitute x  = 0

Then the equation becomes : 4 (0) - 5y = 20

or, -5 y =  20 ⇒  y = -20/5 = - 4

So, for x = 0, y = - 4

So, (0,-4) will be the solution of the given equation.

Let us substitute y  = 0

Then the equation becomes : 4 (x) - 5(0) = 20

or, 4 x =  20 ⇒  x = 20/4 = 5

So, for x = 5, y = 0

So, (5,0) will be the solution of the given equation.

We can try another substitution as well.

For any value of x, we will get a corresponding value of y. So, (x,y) will be the solution of the given equation.

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3 years ago
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I need to know how to balance the scales it says ''Make the scales balance by using addition and subtraction to find in the miss
kramer

This would be much, much, much easier if you told us
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3 years ago
Find the sum. <br> Homework: 9.4 arithmetic series
RUDIKE [14]

Answer:

Step-by-step explanation:

a1 = 3(1) - 7 = - 4

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a60 = 3(60) - 7

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

Just to check, we'll use the second summation formula

d = 3

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a1 = -4

Sum = (2*a1 + (n - 1)*d )*n / 2

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Same answer.

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3 years ago
Between which two consecutive integers does ???147 lie?
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What’s the answer to 4x+3=15
Anastasy [175]

Answer: 4.500

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3 0
3 years ago
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