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3 years ago

9

What is 2.85714285714 converted as a fraction

1 answer:

denis-greek [22]3 years ago

3 0

2 9/10 if you round it up but if it is not then its 2 4/5

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Amanda is cooking a turkey for dinner. The recipe says that the turkey should cook for 1\dfrac121 2 1 1, start fraction, 1, di

atroni [7]

Answer:

<h2>The turkey needs to cook for 5 more minutes </h2>

Step-by-step explanation:

According to recipe, Amanda should cook for total of 1/2 hour which is 30 minutes. If she has been cooking for 25 minutes, the remaining time needed for the turkey to cook will be t<u>he difference between the total time and the time she has already spent in cooking.</u>

$minutes\ left = 30 minutes - 25 minutes\\\\munites\ left = 5 minutes$

Hence, the turkey needs to cook for 5 more minutes

3 0

4 years ago

Find the inverse of this matrix.<br> 1 -1 -1<br> -1 2 3 <br> 1 1 4

zheka24 [161]

Let's use Gaussian elimination. Consider the augmented matrix,

$\left[\begin{array}{ccc|ccc}1 & -1 & -1 & 1 & 0 & 0\\-1 & 2 & 3 & 0 & 1 & 0\\1 & 1 & 4 & 0 & 0 & 1\end{array}\right]$

• Add row 1 to row 2, and add -1 (row 1) to row 3:

$\left[\begin{array}{ccc|ccc}1 & -1 & -1 & 1 & 0 & 0\\0 & 1 & 2 & 1 & 1 & 0\\0 & 2 & 5 & -1 & 0 & 1\end{array}\right]$

• Add -2 (row 2) to row 3:

$\left[\begin{array}{ccc|ccc}1 & -1 & -1 & 1 & 0 & 0\\0 & 1 & 2 & 1 & 1 & 0\\0 & 0 & 1 & -3 & -2 & 1\end{array}\right]$

• Add -2 (row 3) to row 2:

$\left[\begin{array}{ccc|ccc}1 & -1 & -1 & 1 & 0 & 0\\0 & 1 & 0 & 7 & 5 & -2\\0 & 0 & 1 & -3 & -2 & 1\end{array}\right]$

• Add row 2 and row 3 to row 1:

$\left[\begin{array}{ccc|ccc}1 & 0 & 0 & 5 & 3 & -1\\0 & 1 & 0 & 7 & 5 & -2\\0 & 0 & 1 & -3 & -2 & 1\end{array}\right]$

So the inverse is

$\begin{bmatrix}1&-1&-1\\-1&2&3\\1&1&4\end{bmatrix}^{-1} = \boxed{\begin{bmatrix}5&3&-1\\7&5&-2\\-3&-2&1\end{bmatrix}}$

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3 years ago

Diane has a part time job that pays her $6.50 an hour. During one week she works 26 hours and is paid $178.10. She realizes when

Leya [2.2K]

Her raise is 35 cents per hour.

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3 years ago

Can someone please help me with math

allsm [11]

Answer:

the answer is D

Step-by-step explanation:

the graph has a negative correlation

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3 years ago

Maggie creates the fraction models shown to find the value of 1 3/4 divided by 2/3

Assoli18 [71]

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Step-by-step explanation:

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3 years ago