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olya-2409 [2.1K]
3 years ago
7

2x - y = -7 -5x+5y=-5

Mathematics
1 answer:
wolverine [178]3 years ago
3 0

Answer:

Have you tried math      way yet?

Step-by-step explanation:

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The pond can hold 400 water lilies. By what day will the pond be full? Write and solve an equation. The pond will be full by the
egoroff_w [7]

The pond will be full by the end of the day in 93 days.

<h3>Linear system</h3>

It is a system of an equation in which the highest power of the variable is always 1. A one-dimension figure that has no width. It is a combination of infinite points side by side.

Given

The pond can hold 400 water liters.

y = 3.915(1.106)x is an expression.

<h3>To find </h3>

The pond will be full by the end of the day.

<h3>How many days it will take?</h3>

Let x be the day and y be the hold of water.

When pond can hold 400 liters of water the x will be

400 = 3.915×1.106x

400 = 4.33 x

    x = 92.37 ≈ 93

Thus, the pond will be full by the end of the day in 93 days.

More about the linear system link is given below.

brainly.com/question/20379472

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Step-by-step explanation:

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Suppose the coefficient matrix of a linear system of four equations in four variables has a pivot in each column. Explain why th
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Answer:

the matrix described in the question is a linearly independent matrix, and linearly dependent matrix has a unique solution.   <em>see further explanation below</em>

Step-by-step explanation:

For any matrix to have a pivot column in all its column, it means that the matrix must be linearly dependent

Thus, as the columns are linearly independent , the system of equation have a unique solutions .

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