anonymous
  • anonymous
The sum of three consecutive intergers is -27. What are the numbers? A. {-11, -13, -15} B. {-10, -9, -8} C. {-7,-9,-11} D. {-5,-9,-13}
Algebra
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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skullpatrol
  • skullpatrol
Any ideas?
welshfella
  • welshfella
just add the 3 numbers in each choice and see which one gives -27.
skullpatrol
  • skullpatrol
Recall that consecutive integers are numbers obtained by counting by ones from any number in the set of integers.

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skullpatrol
  • skullpatrol
Counting by ones with negative numbers would be like -10, -9, -8, -7,...
skullpatrol
  • skullpatrol
If you want a formula: Let n = the first number. Then n + 1 = second number and n+ 2 = third number.
skullpatrol
  • skullpatrol
But just look at the answer choices there is only ONE answer choice that satisfies the definition of "counting by ones." B. {-10, -9, -8} So that^ must be the answer. :-)
anonymous
  • anonymous
Sorry was AFK trying to figure out the problem in my notes, understand, I got D, but now looking at your formula I agree with you on B, thank you! Have an nice day!
skullpatrol
  • skullpatrol
Thanks for asking :D

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