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lilavasa [31]
2 years ago
14

Is x=-4 and y=3 a solution of the equation 2x -5y=-23

Mathematics
2 answers:
pishuonlain [190]2 years ago
7 0

Answer:

Yes

Step-by-step explanation:

First you pull them into the equation

2(-4)-5(3)=-23

Distribute

-8-15=-23

-23=-23

Mamont248 [21]2 years ago
4 0
Is x=-4 and y=3 a solution of the equation 2x -5y=-23

2x -5y=-23
2(-4) - 5(3) =-23
-8 - 15 = -23
-23 = -23

Therefore, x = 4 and y = 3 is a solution to 2x -5y=-23.

Hope that helps!
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Step-by-step explanation:

<u>The complete question is:</u> Which of the following options have the same value as 30% of 81?

Group of choices is:

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(B) 0.3 \times 81

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Simplifying the above expression we get;

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Now, we will solve each of the given options and then see which option matches with our calculation.

Option (A) is given;

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This doesn't match with our answer, so this option is not correct.

Option (B) is given;

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<u><em>This matches with our answer, so this option is correct.</em></u>

Option (C) is given;

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Option (D) is given;

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This doesn't match with our answer, so this option is not correct.

Option (E) is given;

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This doesn't match with our answer, so this option is not correct.

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