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Monica [59]
3 years ago
13

Svetlana's hair is 4 centimeters long. Her hair grows 1.50 centimeters per month. Svetlana wants her hair to grow so that it is

at least 7 centimeters long.
Write an inequality to determine the number of months, mmm, it will take Svetlana's hair to grow so it is at least 7 centimeters long.

Identify which graph represents the solution set to this inequality.
Please choose from one of the following options.
Mathematics
1 answer:
Doss [256]3 years ago
3 0
4+1.5x \geq 7
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2x + y - z = -8
Andreyy89

Answer:

Multiply row 1 by \frac{1}{2}.

Step-by-step explanation:

The augmented matrix of the system of linear equation is described below:

\left[\begin{array}{cccc}2&1&-1&-8\\0&2&3&-6\\-\frac{1}{2} &1&1&-4\end{array}\right]

Where a_{11} = 2, if we need to create a_{11} = 1, we need to multiply row 1 by \frac{1}{2}, that is to say:

\left[\begin{array}{cccc}1&\frac{1}{2} &-\frac{1}{2} &-4\\0&2&3&-6\\-\frac{1}{2} &1&1&-4\end{array}\right]

Hence, the correct answer is: Multiply row 1 by \frac{1}{2}.

5 0
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joja [24]

Answer:

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Step-by-step explanation:

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Answer: 43
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