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KatRina [158]
2 years ago
14

Simplify: n(8n−6)+10(7−n)=2

Mathematics
2 answers:
garik1379 [7]2 years ago
8 0
I think i’m may be ‘B’ i’m so sorry if i’m incorrect!!
damaskus [11]2 years ago
8 0

Answer:

B. 8n²−16n=−68

Step-by-step explanation:

First - Distribute the n & 10

n * 8n & n * -6 = 8n² - 6n

10 * -n & 10 * 7  = -10n +70

Second -  Move the 2 by subtracting

8n² - 6n - 10n +70 = 2 -> 8n² - 6n - 10n +70 - 2 = 2 - 2

Third - Combine like terms

-6n - 10n = -16n

70 - 2 = 68

8n² - 16n + 68 = 0

Fourth - Move 68 by subtracting

8n² - 16n + 68 - 68 = 0 - 68

8n² - 16n = -68

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\Huge\bf{\underline{\red \dag { Aиѕωєя }}} \red \dag

4 Packs of water and 7 Packs of candy bars.

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Find the Least Common Multiple (LCM), but to find the LCM we need to find the prime factorization of each of the following number :-

\sf {35 = 5(7)}

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~Now multiply all the numbers by 5 :-

\sf  \pink{5(7)(2)(2) = 35(2)(2) = 70(2) = 140}

This means she needs 140 bottles of water and 140 candybars.

Water is sold in packs of 35, this means that she needs :

\sf \orange{ \frac{140}{35}  = 4\: packs \: of \: water}

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6 0
3 years ago
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777dan777 [17]

Answer:

(a) Area = (\frac{x}{4})^2

Step-by-step explanation:

The question is incomplete. (See comment for complete question).

From the completed question, we have:

Total\ base\ length = x

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Required

An expression for the area of the base

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The area of the base is then calculated as:

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