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blondinia [14]
3 years ago
15

Which system of equations has no solution? A. 3y = 1 + x y = –2x + 5 B. 4x – 5y = 3 –3 = 4x – 5y C. 5x + 4y = 1 4x – 2y = 4 D. y

= –3x + 4 y = –34x + 1
Mathematics
1 answer:
lina2011 [118]3 years ago
4 0

Answer:

Equation B has no solution

Step-by-step explanation:

The reason it has no solution is because we are getting 2 answers for the same sum

We already have 4x -5y = 3

And also we are still having the same sum as equal to -3

This shows that we can not have a solution to the system

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Answer:

His gain percent is 20%

Step-by-step explanation:

In this question, we want to find the percentage gain of the business.

We need the following parameters;

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Using the values we have in the question;

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Mathematically the percentage gain will be;

% gain = (selling price- cost price)/selling price * 100%

% gain = (16,800-14,000)/14,000 * 100/1

% gain = 2800/14,000 * 100/1 = 1/5 * 100/1 = 20%

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Answer:

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