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Evgesh-ka [11]
3 years ago
12

After reading a book for English class, 100 students were asked whether or not they enjoyed it. Nine twenty-fifths of the class

did not like the book. How many students liked the book?
Mathematics
2 answers:
Dmitrij [34]3 years ago
7 0

Multiply 20/5 by nine so 20/5 simplify into 4 4 times nine is 36, so only 36 kids liked the book
skelet666 [1.2K]3 years ago
5 0

Answer: 64 students


Step-by-step explanation:

Given: Total students in English class= 100

Nine twenty-fifths of the class did not like the book.

⇒ \frac{9}{25} of class did not like the book.

Thus, the number of students did not like the book=\frac{9}{25}\times100=36

Therefore, the number of students like the book =Total students- students did not like the book

=100-36=64 students.

The number of students like the book =64

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She used 13 1/2 fl oz of milk
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2 years ago
12 to the power of 2 minus 6 to the power 2 times 3 to the power of 4 plus 5 to the power of 3?
Marina86 [1]
12^2 - 6^2 * 3^4 + 5^3

(144) - (36) * (81) + (125)
144 - (36 * 81) + 125
144 - 2916 + 125
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5 0
3 years ago
Read 2 more answers
I'm having a hard time with this question so someone help please
bulgar [2K]

Answer:

  7.7 km

Step-by-step explanation:

This question is asking you to find the third side of a triangle in which two sides and an angle not between them are given. The law of sines provides the necessary relationships.

<h3>Law of Sines</h3>

The Law of Sines tells you that triangle side lengths are proportional to the sine of the opposite angle. For this triangle TPJ, the relation is ...

  t/sin(T) = p/sin(P) = j/sin(J)

We are given T=68°, p=5.2 km, t=7.5 km, and we are asked to find the length of j, the TP distance.

<h3>Setup</h3>

We know the sum of angles in a triangle is 180°, and the sine of an angle is equal to the sine of its supplement. This lets us fill in the Law of Sines equation like this:

  7.5/sin(68°) = 5.2/sin(P) = j/sin(68°+P) . . . . . solve for j

<h3>Solution</h3>

This can be solved in two steps. First, we find angle P, then we use that to find length j.

  sin(P) = 5.2/7.5 × sin(68°) ≈ 0.642847

  P = arcsin(0.642847) ≈ 40.0045°

Now, we can find j:

  j = 7.5 × sin(68° +40.0045°)/sin(68°) ≈ 7.693 . . . km

The distance from the tower to the plane is about 7.7 km.

__

<em>Additional comment</em>

We have used T, P, and J to refer to the vertices at the tower, plane, and jet.

The triangle can also be solved using the Law of Cosines. In that case, the missing side will be the solution to a quadratic equation with irrational coefficients.

3 0
2 years ago
Page
Sonja [21]

Answer:

8,333 total population

Step-by-step explanation:

Question can be restated as "5000 is 60% of what number?"

5000 = .6x

x = 5000/0.6

x = 8,333.33

6 0
3 years ago
Let f(x)=x^2+2 and g(x)=1-3x Find each function value. f(g(-4))
yawa3891 [41]

Answer:

171

Step-by-step explanation:

First you plug -4 into the g(x) equation

g(-4)= 1-3(-4)

Use pemdas

g(-4)= 1+12

g(-4)= 13

Next you plug 13 into the f(x) equation

f(13)= 13^2 + 2

First you do 13^2=169

Add 2 and you get 171

4 0
2 years ago
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