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Zanzabum
3 years ago
10

What's the first step in solving this equation 3m+9=30

Mathematics
1 answer:
Keith_Richards [23]3 years ago
3 0
30-9 would be the first step
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Bernard solved the equation 5 x + (negative 4) = 6 x + 4 using algebra tiles. Which explains why Bernard added 5 negative x-tile
LenaWriter [7]

Answer:

To find why he would do this, we need to understand what all the possible first steps are in this equation.

You could add 4 to both sides.

You could subtract 4 from both sides.

You could subtract 5x from both sides.

You could subtract 6x from both sides.

Any of these work. In Bernard's case, he added 5 negative x tiles, meaning he subtracted. C and D already make no sense, but allow me to further explain. By him subtracting 5x from both sides, the equation turns into:

-4 = x + 4

By this point, he can just subtract 4 from both sides to find the value of x. But the question asks for why he did the first step. Therefore, it would

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3 years ago
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There are 6 quarters in a jar. Jill adds 2 quarters to the jar every day. Write a linear equation in slope-intercept form to rep
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Initial number of quarters; 6

x = number of days

Number of quarters added after x days: 2x

Total amount of quarters, y = 2x + 6

Note: the slope is 2 and the y-intercept is 6.

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3 years ago
Three kids, Alberto, Bernadette, and Carlos, decide to share 11 cookies. They wonder how many ways they could split the cookies
Luda [366]

Using the arrangements formula, it is found that they find 46200 ways.

<h3>What is the arrangements formula?</h3>

The number of arrangements of n elements is given by:

A_n = n!

If they repeat in n_1, n_2, \cdots, n_n ways, the number of arrangements is given by:

A_n^{n_1, n_2, \cdots, n_n} = \frac{n!}{n_1!n_2!\cdots n_n}

In this problem, 11 elements are arranged with repetitions of 4, 3 and 3, hence:

T = \frac{11!}{4!3!3!} = 46200

They find 46200 ways.

More can be learned about arrangements at brainly.com/question/2259733

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Absolute value of 5 and -5
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Answer:

The absolute value of 5 and -5 are the same. The absolute value is 5.

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In attempting to create a reduced row echelon matrix, DeShawn got the following matri
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Step-by-step explanation:

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