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Jobisdone [24]
2 years ago
15

What does X equal. -356 = -77 -9x This is grade 7 math.

Mathematics
1 answer:
LuckyWell [14K]2 years ago
7 0

Answer:

<h2> <em><u>x = 2.82 (approx.)</u></em></h2>

Step-by-step explanation:

<em><u>Given</u></em><em><u>, </u></em>

- 356 = -77 - 99x

=> -77 - 99x = -356

=> -99x = -356 + 77

=> -99x = -279

=  > x =  \frac{ - 279}{ - 99}

=> x = 2.8181....

=> <em><u>x = 2.82 (approx.) (Ans)</u></em>

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<h3>What is a sequence?</h3>

It is defined as the systematic way of representing the data that follows a certain rule of arithmetic.

The total length of the wood = 90 in

We have to cut it into the greatest number of pieces, where each piece will have a different length and the length of each piece is a whole number, in inches.

We can cut it like:

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The above shows the arithmetic sequence,

The sum of the n natural number is given by:

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After solving, we will get:

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Thus, the greatest number of pieces will be 12 where each piece will have a different length and the length of each piece is a whole number, in inches and the remaining piece length will be 12 in(90 - 78).

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Given :

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