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2 years ago

Change to a mixed number 60/14

Mathematics

2 answers:

4vir4ik [10]2 years ago

7 0

5 4/14 or 5 2/7 (simplified fraction)

Jlenok [28]2 years ago

4 0

60/14 changed to a mixed number is 4 4/14

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[20points][Precal] Find the cross product of -(3/4)V and (1/2)w if v = <-2, 12, -3> and w = <-7, 4, -6>

Lana71 [14]

$\mathbf v=\langle-2,12,-3\rangle=-2\,\vec i+12\,\vec j-3\,\vec k$
$-\dfrac34\mathbf v=\dfrac32\,\vec i-9\,\vec j+\dfrac94\,\vec k$

$\mathbf w=\langle-7,4,-6\rangle=-7\,\vec i+4\,\vec j-6\,\vec k$
$\dfrac12\mathbf w=-\dfrac72\,\vec i+2\,\vec j-3\,\vec k$

$-\dfrac34\mathbf v\times\dfrac12\mathbf w=\begin{vmatrix}\vec i&\vec j&\vec k\\\frac32&-9&\frac94\\-\frac72&2&-3\end{vmatrix}$
$=\left((-9)\times(-3)-\dfrac94\times2\right)\,\vec i-\left(\dfrac32\times(-3)-\dfrac94\times\left(-\dfrac72\right)\right)\,\vec j+\left(\dfrac32\times2-(-9)\times\left(-\dfrac72\right)\right)\,\vec k$
$=\dfrac{45}2\,\vec i-\dfrac{27}8\,\vec j-\dfrac{57}2\,\vec k=\left\langle\dfrac{45}2,-\dfrac{27}8,-\dfrac{57}2\right\rangle$

6 0

2 years ago

Sara can type 90 words in 4 minutes. About how

LiRa [457]

Answer:

225 words

Step-by-step explanation:

In order to find the answer to this question we have to find how many words she writes in 1 minute. To do this you need to divide 90 words by 4 minutes:

(90)/4 = 22.5 words/minute

Now that the words per minute is found, we can multiply it by the 10 minutes to find how many words she can write in 10 minutes:

(22.5)(10) = 225

Therefore, Sara can type about 225 words in 10 minutes.

<em>I hope this helps!!</em>

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2 years ago

Tabitha and her parents drive to Dallas for a wedding. After 90 minutes, Tabitha's father tells her they have traveled 105 miles

BARSIC [14]

Im pretty sure it would be 70 mi/h

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2 years ago

Express the answer in the smaller unit 27 kg547 g +694 g

kompoz [17]

Answer:

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Step-by-step explanation:

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2 years ago

6 trays with 72 muffins = muffins per tray

ohaa [14]

Answer:

Step-by-step explanation:

To find unit rate, you divide 72 by 6.

72/6=12.

So, there are 12 muffins per tray.

-hope it helps

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2 years ago