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Dmitriy789 [7]
3 years ago
6

Bernardo is converting a fraction, StartFraction a Over b EndFraction, to a percent. Both a and b are whole numbers and not equa

l to zero. Which expression represents the percent?
Mathematics
2 answers:
Andreas93 [3]3 years ago
6 0

Answer:

100(a divided by b)

Step-by-step explanation:

hope this helps tell me if im wroung

anyanavicka [17]3 years ago
5 0

Answer:

Percent = \frac{100a}{b}\%

Step-by-step explanation:

Given

\frac{a}{b}

Required

Convert to fraction

To do this, we simply multiply the fraction by 100%

This gives:

Percent = \frac{a}{b} * 100\%

Percent = \frac{a * 100}{b}\%

Percent = \frac{100a}{b}\%

The expression cannot be further simplified.

Take for instance the fraction is: \frac{2}{5}

Using the same analysis, the percentage would be:

Percent = \frac{2}{5} * 100\%

Percent = \frac{2 * 100}{5}\%

Percent = \frac{200}{5}\%

Percent = 40\%

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do -3+2 and 2+(3) have the same sum? does it matter if the negative number is the first addend or the second addend
ryzh [129]

Answer:

They don't have the same sum.

Step-by-step explanation:

3 0
3 years ago
. Suppose the weight of Chipotle burritos follows a normal distribution with mean of 450 grams, and variance of 100 grams2 . Def
mylen [45]

Complete Question

Suppose the weight of Chipotle burritos follows a normal distribution with mean of 450 grams, and variance of 100 grams2 . Define a random variable to be the weight of a randomly chosen burrito.

(a) What is the probability that a Chipotle burrito weighs less than 445 grams? (3 points)

(b) 20% of Chipotle burritos weigh more than what weight

Answer:

a

   P(X  <  445  )=  0.3085

b

  k = 458.42

Step-by-step explanation:

From question we are told that

     The population mean is \mu  =  450 \ g

      The variance is var =  100 \ g^2

      The  consider weight is  x =  445 \ g

The  standard deviation is mathematically represented as

     \sigma  = \sqrt{var}

substituting values

     \sigma  = \sqrt{ 100}

     \sigma  = 10

Given that weight of Chipotle burritos follows a normal distribution the  the probability that a Chipotle burrito weighs less than x grams is mathematically represented as

        P(X  <  x  ) =  P ( \frac{X  -  \mu }{\sigma }  < \frac{x  -  \mu }{\sigma }  )

Where  \frac{X - \mu }{\sigma } is  equal to z (the standardized values of the random number X )

So

     P(X  <  x  ) =  P (Z  < \frac{x  -  \mu }{\sigma }  )

substituting values

     P(X  <  445  ) =  P (Z  < \frac{445  -  450 }{10}  )

      P(X  <  445  ) =  P (Z

Now from the normal distribution table  the value for P (Z  is  

      P(X  <  445  ) =  P (Z

=>   P(X  <  445  )=  0.3085

Let the  probability  of the Chipotle burritos weighting more that k be 20% so  

       P(X  >  k  ) =  P ( \frac{X  -  \mu }{\sigma }  > \frac{k  -  \mu }{\sigma }  ) = 0.2

=>    P (Z> \frac{k  -  \mu }{\sigma }  ) = 0.2

=>    P (Z> \frac{k  -  450}{10 }  ) = 0.2

From the normal distribution table the value of z  for  P (Z> \frac{k  -  \mu }{\sigma }  ) = 0.2 is  

    z  =  0.8416

=>   \frac{k  -  450}{10 }  = 0.8416

=>   k = 458.42

       

6 0
3 years ago
1. (2 pts) Which of the following values of x MOST CLOSELY solves 32x+3 - 107x4?
lesantik [10]

Answer:

<em>The answer is (3)</em>

Step-by-step explanation:

32x+(3) - 107x4 and the 3 is close.

therefor is it is (3)

8 0
3 years ago
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Gekata [30.6K]

Answer:

-22

Step-by-step explanation:

f(x) = -2x^2 - 4 for x = 3

f(3) = -2(3)^2 - 4

f(3) = -2(9) - 4

f(3) = -18 - 4

f(3) = -22

Answer: -22

8 0
3 years ago
Y + 2 = 2/3 (x - 4)<br> Slope
Oliga [24]

Answer: Y = 2/3x - 14/3

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3 years ago
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