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3 years ago

What is the solution to the system of equations? 2x – y = 7 y = 2x + 3

2 answers:

7 0

2nd one, y=2x+3
so subsitute y with 2x+3 in other equation

2x-(2x+3)=7
2x-2x-3=7
0-3=7
-3=7
false
no solution
(also, the slopes of the lines are the same and therefor they are paralell and differnet y intercepts so never intersect)

no solution

Kruka [31]3 years ago

4 0

Answer: The given system of equations will have NO solution.

Step-by-step explanation: We are given to find the solution to the following system of linear equations :

$2x-y=7~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)\\\\y=2x+3~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(ii)$

We will be solving the given system of equations by the method of SUBSTITUTION.

Substituting the value of y from equation (ii) in equation (i), we get

$2x-y=7\\\\\Rightarrow 2x-(2x+3)=7\\\\\Rightarrow 2x-2x-3=7\\\\\Rightarrow -3=7,$

which can NEVER be true.

Therefore, the given system of equations will have NO solution.

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2 years ago

BRAINLIEST GIVEN TO BEST ANSWER

lbvjy [14]

Answer:

Slope = $\frac{1}{4}$

Step-by-step explanation:

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The slope is $\frac{1}{4}$ .

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3 years ago

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Answer:

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Step-by-step explanation:

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2 years ago

Which numbers are perfect squares? Check all that apply.

Andrew [12]

A perfect square is a number made by squaring a whole number.

Since

$1^2=1;$
$4^2=16;$
$10^2=100,$

numbers 1, 16, 100 are perfect squares. You cannot find such whole number n, that

$2=n^2;$
$18=n^2;$
$32=n^2;$
$44=n^2;$
$94=n^2,$

therefore, numbers 2, 18, 32, 44, 94 are not perfect squares.

Answer: 1, 16, 100.

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3 years ago

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mr Goodwill [35]

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3 years ago

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