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Vesna [10]
3 years ago
11

(-18)+1+13+(-15)= ?​

Mathematics
1 answer:
svetoff [14.1K]3 years ago
4 0

Answer:

−19

Step-by-step explanation:

−18+1+13−15

=−17+13−15

=−4−15

=−19

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The sum of 4 consecutive even numbers is 36 what is the first number in this sequence
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<u>Answer</u>

6


<u>Explanation</u>

let n be the first even number in the sequence.

The 2nd term = n + 2

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    4th term = n + 4 + 2

                   = n + 6

The sum of these number = 36.

∴ n + (n +2) + (n + 4) + (n + 6) = 36

 4n + 12 = 36

 4n = 36 - 12

 4n = 24

n = 24/4

  = 6

The first term is 6.

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3 years ago
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