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3 years ago

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

Mathematics

2 answers:

Contact [7]3 years ago

7 0

Hi there! :)

Answer:

5n+50

*The answer must have a positive sign.*

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

Final answer is 5n+50

Hope this helps!

Have a nice day! :)

-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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Evaluate. Write your answer as an integer or as a decimal rounded to the nearest hundredth. tan 26° = ___

barxatty [35]

Answer:

0.49

Explanation:

Given the expression:

tan 26°

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1 year ago

Read 2 more answers

Mr. Nelson lost one of his students' test

amid [387]

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:

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,

59.2 = (235 + m) / 5

59.2 × 5 = 235 + m

296 = 235 + m

m = 296 - 235

m = 61

Missing score = 61

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3 years ago

S is located at (9 -3) point T is located at (4 -3)

cupoosta [38]

Answer:

Step-by-step explanation:

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

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.

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The marbles can be modeled as spheres.

Volume of a sphere

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

Radius

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

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

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

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The vase can be modeled as a cylinder.

Volume of a cylinder

$\sf V=\pi r^2 h \quad \textsf{(where r is the radius and h is the height)}$

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

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Volume of water

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Answer:

Step-by-step explanation:

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