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alexandr402 [8]
4 years ago
12

3.8,4.2,5.3,x; mean 4.8

Mathematics
2 answers:
jenyasd209 [6]4 years ago
6 0
Hello!

I would assume we are solving for x, so lets try to understand what we need to do here.

to find the mean, you add all the numbers together and divide by how many number sets there are.

so in this case: (3.8+4.2+5.3+x)/4

so what I did, was go in reverse

(4.8*4)-3.8-4.2-5.3=5.9

so x must be 5.9

I hope this helps, and have a nice day!
Free_Kalibri [48]4 years ago
3 0

Answer: 5.9

Step-by-step explanation:

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6 servings ---------------> 2-quart pot

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3 years ago
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so, we know it does 3/2 π in 1 second, how many π does it do in 60 seconds(1 minute) ?

\bf \begin{array}{ccll}&#10;radians&seconds\\&#10;\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\&#10;\frac{3\pi }{2}&1\\\\&#10;r&60&#10;\end{array}\implies \cfrac{\frac{3\pi }{2}}{r}=\cfrac{1}{60}\implies \cfrac{\frac{3\pi }{2}}{\frac{r}{1}}=\cfrac{1}{60}

\bf \cfrac{3\pi }{2}\cdot \cfrac{1}{r}=\cfrac{1}{60}\implies \cfrac{3\pi }{2r}=\cfrac{1}{60}\implies \cfrac{3\pi \cdot 60}{2}=r\implies 90\pi =r\\\\&#10;-------------------------------\\\\&#10;\textit{how many times }2\pi \textit{ goes into }90\pi ?\qquad \cfrac{90\pi }{2\pi }\implies 45
7 0
3 years ago
What two numbers plus 35 equal 180
Andrews [41]
X^2+35=180?
Subtract 35 on each side

x^2=145
Take the square root

x= -sqrt(145)
+sqrt 145...

I hope this helps!!
4 0
3 years ago
Read 2 more answers
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