3 years ago

I need help: 15% of 20 is _____.

Mathematics

2 answers:

OLEGan [10]3 years ago

6 0

The answer is three.

Advocard [28]3 years ago

3 0

The answer to this question is 3.

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Please select the best answer from the choices provided A B C D

SSSSS [86.1K]

ANSWER

The correct answer is D.

$\sum_{n=1} ^{6} (n - 3) = ( - 2) + ( - 1) + (0) + (1) + (2) + (3) = 3$

EXPLANATION

The given expression is

$\sum_{n=1} ^{6} (n - 3)$

The symbol means summation.

So we need to substitute

$n=1,n=2,n=3,n=4,n=5, \:and\:n=6$

into the formula and add all to get,

$\sum_{n=1} ^{6} (n - 3) = (1 - 3) + (2 - 3) + (3- 3) + (4 - 3) + (5 - 3) + (6 - 3)$

We simplify to obtain,

$\sum_{n=1} ^{6} (n - 3) = ( - 2) + ( - 1) + (0) + (1) + (2) + (3) = 3$

The correct answer is D

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3 years ago

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Step-by-step explanation:

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Give the most precise classification for each figure

lys-0071 [83]

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