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Debora [2.8K]
3 years ago
14

The size of the new parking lot will be twice the size of the old parking lot. How many feet,x, was the old parking lot expanded

by?
Mathematics
2 answers:
Fiesta28 [93]3 years ago
6 0

Answer: The old parking lot was expanded by x feet.

Step-by-step explanation:

Since we have given that

The size of the new parking lot will be twice the size of the old parking lot.

Let the size of old parking lot be 'x'.

So, According to question, the size of new parking lot would be '2x'.

So, It means the old parking lot was expanded by

Size of new parking lot - Size of old parking lot

=2x-x

=x feet

Hence, the old parking lot was expanded by x feet.

yKpoI14uk [10]3 years ago
5 0

Answer:

y=2x- the size of the old parking lot

Step-by-step explanation:

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The system of equations below has no solution.
mixer [17]

Answer:

  • Second option: 0 = 26

Explanation:

This is the given system of equations:

\frac{2}{3} x+\frac{5}{2} y=15\\ \\ 4x+15y=12

A linear combination of the system is any equation formed by the algebraic addition of both equations, one or both multiplied by an arbitrary constant.

To prove that the given system has no solution you could multiply the first equation times 6 (to get rid of the fractions), multiply the second equation times - 1, and add the two results:

<u>1. First equation times 6:</u>

6\times\frac{2}{3} x+6\times\frac{5}{2}y=6\times 15\\ \\ 4x+15y=90

<u />

<u>2. Second equation times - 1:</u>

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<u />

<u>3. Add the two new equations:</u>

0=78

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<u>4. Conclusion:</u>

Since 0 = 78 is false, no matter what the value of x and y are, the conclusion is that the system of equations has not solution.

The only choice that represents that same situation is the second one, 0 = 26. That is a possible linear combination that represents that the system of equations has no solutions.

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Are 9.91 and 9.0 equivalent decimals?
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