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SSSSS [86.1K]
3 years ago
9

What are all the fractions are equivalent to 4/12

Mathematics
1 answer:
GarryVolchara [31]3 years ago
5 0
The answers are 1/3, 2/6, 3/9, 4/12
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Which of the following values in the set below will make the equation 2x + 1 = 3 true? (Only input the number.)
slava [35]
The only one that makes sense is 1
7 0
3 years ago
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[10] In the following given system, determine a matrix A and vector b so that the system can be represented as a matrix equation
irina1246 [14]

Answer:

y=-\frac{158}{579}

Step-by-step explanation:

To find the matrix A, took all the numeric coefficient of the variables, the first column is for x, the second column for y, the third column for z and the last column for w:

A=\left[\begin{array}{cccc}1&1&2&2\\-7&-3&5&-8\\4&1&1&1\\3&7&-1&1\end{array}\right]

And the vector B is formed with the solution of each equation of the system:b=\left[\begin{array}{c}3\\-3\\6\\1\end{array}\right]

To apply the Cramer's rule, take the matrix A and replace the column assigned to the variable that you need to solve with the vector b, in this case, that would be the second column. This new matrix is going to be called A_{2}.

A_{2}=\left[\begin{array}{cccc}1&3&2&2\\-7&-3&5&-8\\4&6&1&1\\3&1&-1&1\end{array}\right]

The value of y using Cramer's rule is:

y=\frac{det(A_{2}) }{det(A)}

Find the value of the determinant of each matrix, and divide:

y==\frac{\left|\begin{array}{cccc}1&3&2&2\\-7&-3&5&-8\\4&6&1&1\\3&1&-1&1\end{array}\right|}{\left|\begin{array}{cccc}1&1&2&2\\-7&-3&5&-8\\4&1&1&1\\3&7&-1&1\end{array}\right|} =\frac{158}{-579}

y=-\frac{158}{579}

7 0
3 years ago
There are two less nickels than dimes, and as many quarters, as nickels and dimes together. The total amount of money is $5.25.
katen-ka-za [31]
N=d-2
q=n+d =>q=(d-2)=q=2d-2
25q+5n+10d=525
replace q and n with d
25(2d-2) +5(d-2)+10d=525
50d-50+5d-10+10d=525
65d=585
d=9
n=7
q=16

3 0
2 years ago
What number is in the tenth's place? 41.53
zysi [14]

Answer: The number in the tenth's place is <u>5</u>

Step-by-step explanation:

There is no ones place in decimals

41.<u>5</u>3

the tenth's place come first then the hundredth's and so on.

6 0
2 years ago
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»)<br> Which number sentence is true?<br> A 0.35 &gt;<br> 6<br> 7<br> B, 0.35 &lt;-<br> 6<br> 7
Lady_Fox [76]

Answer:

B because 67 is more than 0.35

3 0
2 years ago
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