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zaharov [31]
3 years ago
13

Which call numbers of the dewey decimal system are the dictionaries in?

Mathematics
1 answer:
belka [17]3 years ago
4 0

The Dewey Decimal Classification System is a method used to calssify books in the library. It was named after Melvil Dewey who developed it in 1876. The system uses numbers to organize the subjects of each nonfiction books and are divided into 10 main subject groups called categories. Each category is presented by a figure starting from 000 to 999. Each number presents a special topic. Books with the same number are placed in alphabetical order by the last name of the author. The first digit of a three digit number signifies the main class. Suppose you have 500, the 5 in signifies natural sciences and mathematics. The second digit signifies the division and the last digit signifies the sections.

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Complete the following statement.
Elis [28]

Answer:

56 adults and 35 children

sum the parts of the ratio 16 + 10 = 26

Divide 91 by 26 to find one part of the ratio

= 3.5 ← 1 part of the ratio

16 parts = 16 × 3.5 = 56 ← number of adults

10 parts = 10 × 3.5 = 35 ← number of children

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
140 out of 250 what is the percent
stiks02 [169]
The percent is 56.
I worked it out by doing 140 divided by 250, then timesing the answer by 100.
I hope this answer helps!
Please could you help me with my question too?

3 0
3 years ago
Read 2 more answers
Trisha needs 41/2 yards of fabric to do a project. If she already has 2/3 of a yard of fabric. What is the minimum amount of fab
Mrrafil [7]
If 41\2 and she has 2\3 it B
8 0
3 years ago
Please help I’m confused math is hard!
Butoxors [25]

Answer:

Step-by-step explanation:

basically, what they are asking you is to factor and then plug in the values (x=3; x=4) that they gave you.

first, you need to factor out the equation.

start with the original equation.

V=4x^3+10x^2+4x

factored form:

V= 2x(2x^2+5x+2)

next, you're going to want to plug in the values.

the answer asks for x=4, but you should do both.

v=2(3)(2(3)^2+5(3)+2)

do not forget to do the exponents before!

v=6(18+15+2)

v=6(35)

v=210 ft^2

that's the answer for if x was equal to 3.

V= 2x(2x^2+5x+2)

<em>don't forget to write the original equation first. </em>

V=2(4)(2(4)^2+5(4)+2)

<em>V=8(36+20+2)</em>

<h2><u><em>V=464 ft^2  </em></u></h2>

⬆is your answer! hope this helped!!

3 0
3 years ago
I need help with both of these questions.
grigory [225]

Answer:

1) b=14.34 units.

2) a=20.48 units

Step-by-step explanation:

since, the triangle is a right angled triangle so we can use the trignometric identity in order to find the values of a and b.

let the base be denoted by 'B'.

height or perpendicular side of the triangle be denoted by 'P'.

and hypotenuse of the triangle be denoted by 'H'.

then using sine and cosine trignometric identity we have:

\sin x=\dfrac{P}{H}

and \cos x=\dfrac{B}{H}

Here x=35°

and H=25 units , P=b and B=a

Hence \sin 35=\dfrac{b}{25}

as  \sin 35=0.573576

hence, b=14.3394 units.

also \cos35=\dfrac{a}{25}

and \cos35=0.819152

Hence a=20.4788 units

In two decimal places we could represent it as:

a=20.48 units

and b=14.34 units.

6 0
3 years ago
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