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Olenka [21]
3 years ago
10

Which of these are mathematical laws that help us solve numerical problems? A. decimals B. graphs C. formulas D. percentages E.

fractions
Mathematics
2 answers:
liq [111]3 years ago
7 0
<h2>Hello!</h2>

The answer is C. formulas

<h2>Why?</h2>

Formulas are laws o conditions that help us when we are solving numerical problems, we use them to relate number/variables in order to found equivalence between what we are calculating and the information we have.

A formula can include constants, variables and always contain an equality, this last one will help us to establish the needed equivalence to solve numerical problems.

Discarding the other given options:

A. decimals: Incorrect, decimals are a type of number which is not whole numbers.

B. graphs: Incorrect, graphs are graphical tools that we can use to show information or data.

D. percentages: Incorrect, percentages are used to show numerical information as a fraction of 100 units.

E. fractions: Incorrect, like decimals, fractions are a type of number which is not whole numbers, fractions are represented by a division of a number into another, representing just a part of a determinate whole number.

Have a nice day!

kirill115 [55]3 years ago
3 0
<h2>Answer:</h2>

<u>The correct answer is </u><u>C) Formulas</u>

<u></u>

<h2>Step-by-step explanation:</h2>

Formula is a problem-solving technique that students can use to find answers to math problems involving geometry, percents, measurement, or algebra. To solve mathematical numerical problems, one should use appropriate formula and substitute data in the correct places of a formula to find the required results. If there is a slight mistake in the formula everything goes wrong.

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A library contains 2000 books. There are 3 times as man non fiction books. Write and solve a systems of equations to determine t
icang [17]

Answer:

The number of fiction books is <u>500</u> and non fiction books is <u>1500</u>.

Step-by-step explanation:

Given:

Total book library contains = 2000.

There are 3 times as many non fiction books as fiction books.

Now, to determine the number of non fiction books and fiction books.

Let the fiction books be x.

And the non fiction books be 3x.

Total books = 2000.

Now, to get the number of non fiction books and fiction books we put an equation:

3x+x=2000.

4x=2000.

Dividing both sides by 4 we get:

x=500.

Fiction books = 500.

Non fiction books = 3x=3\times 500=1500.

Therefore, the number of fiction books is 500 and non fiction books is 1500.

4 0
3 years ago
Cold antoje help me answering this please :).<br>Fake answer will be reported. ​
Harrizon [31]

Answer:

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Distance is the square root of (x1-x2)^2+(y1-y2)^2

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50sqrt10

Rounding is 158.1

5 0
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Step-by-step explanation:

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