Answer:
Step-by-step explanation:
3 - 13x - 7x^2 - (5x^2 + 12x - 10) =
3 - 13x - 7x^2 - 5x^2 - 12x + 10 =
- 12x^2 - 25x + 13 <===
Answer:
434 liters left
Step-by-step explanation:
5855 - 5421
The system of equations would be x + y = 28 and 3x + 5y = 100.
<h3>What is a system of equations?</h3>
A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.
Given;
A test is worth 100 points. Multiple-choice questions are worth 3 points and short-answer questions are worth 5 points.
If the test has 28 questions
Let x be multiple-choice questions
Let y be short-answer questions
The system of equations would be
x + y = 28
3x + 5y = 100
Learn more about equations here;
brainly.com/question/10413253
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