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olasank [31]
3 years ago
8

How can i use models to relate fractions and decimals?

Mathematics
2 answers:
Anit [1.1K]3 years ago
7 0
You can use different colors
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miskamm [114]3 years ago
6 0
You can make visual (model) witch helps you see what you are doing
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Rewrite the system of linear equations as a matrix equation AX = B.
iren2701 [21]

Answer:

\left[\begin{array}{ccc}1&2&5\\1&1&1\\4&6&5\end{array}\right]*\left[\begin{array}{ccc}x1\\x2\\x3\end{array}\right]=\left[\begin{array}{ccc}5\\6\\7\end{array}\right]

Step-by-step explanation:

Let's find the answer.

Because we have 3 equations and 3 variables (x1, x2, x3) a 3x3 matrix (A) can be constructed by using their respectively coefficients.

Equations:

Eq. 1 : x1 + 2x2 + 5x3 = 5

Eq. 2 : x1 + x2 + x3 = 6

E1. 3 : 4x1 + 6x2 + 5x3 = 7

Coefficients for x1 ; x2 ; x3

From eq. 1 : 1 ; 2 ; 5

From eq. 2 : 1 ; 1 ; 1

From eq. 3 : 4 ; 6 ; 5

So matrix A is:

\left[\begin{array}{ccc}1&2&5\\1&1&1\\4&6&5\end{array}\right]

And the vector of vriables (X) is:

\left[\begin{array}{ccc}x1\\x2\\x3\end{array}\right]

Now we can find the resulting vector (B) using the 'resulting values' from each equation:

\left[\begin{array}{ccc}5\\6\\7\end{array}\right]

In conclusion, AX=B is:

\left[\begin{array}{ccc}1&2&5\\1&1&1\\4&6&5\end{array}\right]*\left[\begin{array}{ccc}x1\\x2\\x3\end{array}\right]=\left[\begin{array}{ccc}5\\6\\7\end{array}\right]

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3 years ago
Thirty-six and fifty-two thousandths as a decimal number
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In decimal form that would be 36.052
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What is 2 with an exponent of negative 2 equal to?
balu736 [363]

Answer:

So since we have 2^-2 We can do 1/2^2  = 0.25

So if you have y^-x = 1/y^x

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Suppose a group of dancers performed the Round Dance at an Indigenous Peoples' Day
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Answer:

4.27 meters

Step-by-step explanation:

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Find the greatest common factor of the following monomials 37u^3v^6 and u^6v^2
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Answer:

Step-by-step explanation:

The GCF of these monomials is : u^3v^2

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