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I am Lyosha [343]
3 years ago
6

10(n+5)-5n what's the answer to this??

Mathematics
2 answers:
Contact [7]3 years ago
7 0

<u><em>Hi there! :)</em></u>

<u><em>Answer:</em></u>

<u><em>5n+50</em></u>

<u><em>*The answer must have a positive sign.*</em></u>

Step-by-step explanation:

Distributive property: a(b+c)=ab+ac

First, you expand.

Then, you multiply by the numbers from left to right.

10(n+5)

=10n+50

10n+50-5n

You subtract by the numbers from left to right.

10-5=5

<em><u>Final answer is 5n+50</u></em>

Hope this helps!

Have a nice day! :)

:D

-Charlie

Thanks!




Norma-Jean [14]3 years ago
3 0

Answer:

5n + 50

Step-by-step explanation:

This is the Equation to the regular problem, multiply the prentces, and, combine like terms

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Answer:

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1 year ago
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Mr. Nelson lost one of his students' test
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Complete question :

Mr. Nelson lost one of his students' test papers. He knows that the other 4 students scored as follows: 60, 62, 56, 57. He also knows that the average score is 59.2. What is the score on the missing paper?

Answer:

61

Step-by-step explanation:

Given the following :

Total number of students = 4 + 1 missing = 5

Score on the four avaliable papers = 60, 62, 56, 57

Average score of the 5 papers = 59.2

Score on missing paper :

Sum of each score / number of papers

Sum of each score = sum of available scores + missing score

Let missing score = m

(60 + 62 + 56 + 57 + m) = 235 + m

Recall:

Average = total sum / number of observations

Hence,

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6 0
3 years ago
S is located at (9 -3) point T is located at (4 -3)
cupoosta [38]

Answer:

5

Step-by-step explanation:

The distance formula is:

d = \sqrt {\left( {x_2 - x_1} \right)^2 + \left( {y_2 - y_1} \right)^2 }

We can plug in the given coordinates into the equation:

d = \sqrt {\left( {4 - 9} \right)^2 + \left( {-3 - (-3)} \right)^2 }\\d = \sqrt {\left( {-5} \right)^2 + \left( {-3+3} \right)^2 }\\d = \sqrt{25 + \left( {0} \right)^2 }\\d=\sqrt{25+0}\\d=\sqrt{25}\\d=5

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3 years ago
A cylindrical base has a diameter of 6 inches. At the bottom of the vase, there are 9 marbles, each of the diameter 3 inches. Th
alexandr1967 [171]

Answer:

\sf C. \quad \pi (3\:in)^2(12\:in)-9 \left(\dfrac{4}{3} \pi (1.5\:in)^3 \right)

Step-by-step explanation:

To find the volume of water in the vase, subtract the volume of the marbles from the volume of the cylindrical vase.

..............................................................................................................................

The marbles can be modeled as <u>spheres</u>.

<u>Volume of a sphere</u>

\sf V=\dfrac{4}{3}\pi r^3 \quad \textsf{(where r is the radius)}

<u>Radius</u>

\sf r = \dfrac{1}{2}d \quad \textsf{(where d is the diameter)}

Therefore, the volume of 9 marbles, each of diameter 3 inches is:

\sf Volume & = \sf 9 \left(\dfrac{4}{3} \pi (1.5\:in)^3 \right)

..............................................................................................................................

The vase can be modeled as a <u>cylinder</u>.

<u>Volume of a cylinder</u>

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Therefore, the volume of a cylinder with a base of diameter 6 in and a height of 12 in is:

\sf Volume =\pi (3\:in)^2(12\:in)

..............................................................................................................................

<u>Volume of water</u>

<u />

\begin{aligned}\implies \sf Volume\:of\:water & = \sf Volume\:of\:vase- Volume\:of\:marbles\\& = \sf \pi (3\:in)^2(12\:in)-9 \left(\dfrac{4}{3} \pi (1.5\:in)^3 \right)\end{aligned}

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Answer:

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