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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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3. Lonnie has a gift card worth $600 for a local entertainment store. Movies cost $20 each and newly released video games cost $
Mandarinka [93]

Answer:

8 movies and 6 video games

<em></em>

Step-by-step explanation:

Given

Gift\ Card = \$600

Movies =\ $20

Video\ Game = \$50

Minimum\ Items = 13

Required

Determine the items Lonnie can afford

To solve this question, we make use of trial by error method by taking the options one at a time:

Option 1: 6 movies and 4 video games

<em>This option can not be considered because the number of items is not up to the minimum Lonnte must purchase.</em>

<em />

Option 2: 14 movies and 7 video games

Cost = 14 * \$20 + 7 * \$50

Cost = \$280 + \$350

Cost = \$630

<em>This option can not be considered because the cost of purchase is greater than Lonnte's worth of Gift card.</em>

<em />

Option 3: 2 movies and 10 video games

<em>This option can not be considered because the number of items is not up to the minimum Lonnte must purchase.</em>

<em />

Option 4: 8 movies and 6 video games

Cost = 8 * \$20 + 6 * \$50

Cost = \$160 + \$300

Cost = \$460

Hence, the correct option is <em>8 movies and 6 video games </em>

4 0
3 years ago
220 students went on a field trip. eight buses were filled and 4 students traveled in car. how many students were in each bus?​
Monica [59]

Answer:

27

Step-by-step explanation:

220-4=216

216/8=27

4 0
3 years ago
If A ABC ~ ARST and m 2 A = 42°, m 2 C = 60°,<br> find the measure of &lt; S.
Free_Kalibri [48]

Answer:

78

Step-by-step explanation:

∠A + ∠B + ∠C = 180   { Angle sum property of triangle}

42 + ∠B + 60 = 180

∠B + 102 = 180

∠B = 180 - 102 = 78

In similar triangles, corresponding angles are congruent.

∠S ≅ ∠B

∠S = 78°

7 0
2 years ago
Which is a true statement about 7 and 14?
Ksju [112]
7 and 14 can be divided in to two
7 0
3 years ago
Offering 20 points to whoever answers all of themmmmmmm!
s2008m [1.1K]

Answer:

The first is 30

Step-by-step explanation:

The third is 115

7 0
3 years ago
Read 2 more answers
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