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kolezko [41]
3 years ago
5

How many students were surveyed? How many of the students surveyed would like to learn Spanish?

Mathematics
2 answers:
Irina-Kira [14]3 years ago
6 0

Answer: 50 students were surveyed and 18 students would like to learn Spanish.


Step-by-step explanation:

A. 24% of the people would like to learn French and since 12 students want to learn french, this means that 2%= 1 person

If you add all of the percents up, you get 100 and since 2%= 1 person, you divide 100 by 2, which equals 50 people surveyed.


B. Since 2%= 1 person, you would divide 36÷2, which equals 18 students that would like to learn Spanish :)

Tresset [83]3 years ago
4 0

Answer 1:

1058 students were surveyed

Step-by-step explanation:

The total number of students surveyed were one thousand and fifty-eight. In the question, it is asked about the number of total students that were served who took interest in learning different languages which are  Spanish, French, German, and other languages. Provide are the percentage of the languages that were surveyed over the number of students.

Spanish (36%) = 362

French (24%) = 292

German (18%) = 182

Other (22%) = 222

Calculations

362 + 292 + 182 + 222= 1058

Answer 2 :

362 students want to learn Spanish

Step-by-step explanation:

As given in the question there were thirty-six percent of the students want to learn Spanish. Calculated in the answer 1 part that out of one hundred and fifty-eight student were surveyed in total. This was for the purpose acknowledging the interests of the student on an average within the institution. Therefore, we found out that the number of students will to learning the Spanish language is three hundred and sixty-two.

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mihalych1998 [28]
Si, los dos son iguales

Cuando haces 5x=15, la división dice que x = 3. Para 2x=6 puedes usar el resultado de x=3 de la problema de antes, y cuando te usas esto va a ver que 2 de x cuando x=3 es igual a 6, y por eso 5x=15 y 2x=6 son equivalentes.
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3 years ago
Is 81/4 considered a rational number
maks197457 [2]

Answer:

No

Step-by-step explanation:

A rational number is a number that can be expressed as a fraction p/q where p and q are integers and q!=0. A rational number p/q is said to have numerator p and denominator q. Numbers that are not rational are called irrational numbers. The real line consists of the union of the rational and irrational numbers. The set of rational numbers is of measure zero on the real line, so it is "small" compared to the irrationals and the continuum.

The set of all rational numbers is referred to as the "rationals," and forms a field that is denoted Q. Here, the symbol  Q derives from the German word Quotient, which can be translated as "ratio," and first appeared in Bourbaki's Algèbre (reprinted as Bourbaki 1998, p. 671).

Any rational number is trivially also an algebraic number.

Examples of rational numbers include -7, 0, 1, 1/2, 22/7, 12345/67, and so on. Farey sequences provide a way of systematically enumerating all rational numbers.

The set of rational numbers is denoted Rationals in the Wolfram Language, and a number  x can be tested to see if it is rational using the command Element[x, Rationals].

The elementary algebraic operations for combining rational numbers are exactly the same as for combining fractions.

It is always possible to find another rational number between any two members of the set of rationals. Therefore, rather counterintuitively, the rational numbers are a continuous set, but at the same time countable.

8 0
4 years ago
A publisher reports that 45% of their readers own a laptop. A marketing executive wants to test the claim that the percentage is
nexus9112 [7]

Answer:

z=\frac{0.40 -0.45}{\sqrt{\frac{0.45(1-0.45)}{370}}}=-1.933  

p_v =2*P(z  

Step-by-step explanation:

Information given

n=370 represent the sample selected

\hat p=0.4 estimated proportion of  readers owned a laptop

p_o=0.45 is the value that we want to test

z would represent the statistic

p_v represent the p value

Creating the hypothesis

We need to conduct a hypothesis in order to test if the true proportion of readers owned a laptop is different from 0.45, the system of hypothesis are:  

Null hypothesis:p=0.45  

Alternative hypothesis:p \neq 0.45  

The statistic is:

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

Replacing we got:

z=\frac{0.40 -0.45}{\sqrt{\frac{0.45(1-0.45)}{370}}}=-1.933  

Calculating the p value  

We have a bilateral test so then the p value would be:

p_v =2*P(z  

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3 years ago
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Answer:

surface area=2816 m² & volume =205.33m³

Step-by-step explanation:

here

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vertical height of cone (h)-48 m

slant height of cone (l)-50 m

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volume (v)-?

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