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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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How would the factor pairs change if nancy had only 5 posters to arrange?
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Answer:

Part A) Nancy can arrange the posters in 4 ways

Part B) Nancy can arrange the posters in 2 ways

Step-by-step explanation:

<u><em>The complete question is</em></u>

Nancy has 10 movie posters. She wants to hang them on a wall in equals rows.

A) Find all the ways that she can arrange the posters.

B) How would the factor pairs change if Nancy had only 5 posters to arrange?

Part A) Find all the ways that she can arrange the posters.

we know that

The factors of 10 are

1x10 -----> 1 row of 10 posters

2x5 -----> 2 rows of 5 posters

5x2 -----> 5 rows of 2 posters

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Nancy can arrange the posters in 4 ways

Part B) How would the factor pairs change if Nancy had only 5 posters to arrange?

we know that

if Nancy had only 5 posters to arrange

then

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therefore

Nancy can arrange the posters in 2 ways

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