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quester [9]
3 years ago
12

Roberto debe leer un libro que contiene 340 páginas en cuatro días para lo cual planea la siguiente distribución de lectura: el

primer día 1 5 de las páginas del libro, el segundo 1 4 de lo que le queda por leer y el tercero 1 6 del resto. ¿Cuántas páginas le quedan por leer a Roberto en el cuarto día?
Mathematics
1 answer:
Murrr4er [49]3 years ago
6 0

Answer: le quedan leer 295 páginas

Step-by-step explanation:

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In an election of housing society,there are 30 voters.Each of them gives the vote.Three persons X,Y and Z are standing for post
MAVERICK [17]

Answer:

Mr Y got 10 votes

Step-by-step explanation:

The election of the housing society has 30 voters. Each of them gives the vote. The three person vying for the post of secretary are X, Y and Z.

Le us calculate the votes of each contestant

Mr X

He got 2/5 of the total votes

number of votes = 2/5 × 30

number of votes = 60/5

number of votes = 12

Mr Z

He got 1/4 of the total votes

number of votes = 1/4 × 30

number of votes = 30/4

number of votes = 1/4 × 30

number of votes = 7.5 ≈ 8 votes

Mr Y

The remaining votes will be 30 - 12 - 8 = 10 votes

Therefore,

Mr Y got 10 votes

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3 years ago
Please tell me what 0.85 = a/-7.2 is. thanks
attashe74 [19]

Your answer would be a=-6.12

6 0
3 years ago
The measure of angle S is ___ degrees. Round the number to the nearest degree.
Alex787 [66]
30 degrees because it's a 30-60-90
3 0
3 years ago
5. Rounded to three decimal places, what is the value of r for this data set?
IrinaVladis [17]

The value of correlation coefficient (r) for the dataset is 0.981

<h3>What is correlation coefficient (r)?</h3>

The correlation coefficient (r) is used to determine the closeness and association of a scatter plot points.

The dataset is given as:

  • x: 8  15  3  7  2  14
  • y: 15  21  6  12  3  20

Using a graphing calculator, we have the following parameters:

<h3>X Values </h3>
  • ∑x = 49
  • Mean = 8.167
  • ∑(X - Mx)2 = SSx = 146.833

<h3>Y Values </h3>
  • ∑y = 77
  • Mean = 12.833
  • ∑(Y - My)2 = SSy = 266.833

<h3>X and Y Combined </h3>
  • N = 6
  • ∑(X - Mx)(Y - My) = 194.167

The correlation coefficient (r) is then calculated as:

r = \frac{\sum{((x - My)(Y - Mx)) }}{ \sqrt{((SSx)(SSy))}}

This gives

r = \frac{194.167 }{ \sqrt{((146.833)(266.833))}}\\

r = 0.9809

Approximate

r = 0.981

Hence, the value of correlation coefficient (r) for the dataset is 0.981

Read more about correlation coefficient at:

brainly.com/question/4219149

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2 years ago
Amir is solving the equation x2 + 8 +6=0 with the quadratic formula.
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Answer:

A= -1, B = -8, C = -6

Step-by-step explanation:

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