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anonymous

  • one year ago

Three consecutive integers have a sum of 87 .. What are the integers ?!

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  1. undeadknight26
    • one year ago
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    The options are endless...Any answer choices?

  2. anonymous
    • one year ago
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    No...

  3. freckles
    • one year ago
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    Let n-1 be an integer. The next integer is n. The next integer after that would be n+1. so just solve the equation: (n-1)+n+(n+1)=87

  4. undeadknight26
    • one year ago
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    What he said xD Any questions?

  5. anonymous
    • one year ago
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    I get 2n^3=86 then what?

  6. freckles
    • one year ago
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    oh mine how did you get that

  7. undeadknight26
    • one year ago
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    Did you tell her to divide 86 into 3 first THEN do this?

  8. freckles
    • one year ago
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    how many n's do you see here n, n , n?

  9. anonymous
    • one year ago
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    3..

  10. freckles
    • one year ago
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    n+n+n=3n

  11. freckles
    • one year ago
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    -1+1=0

  12. freckles
    • one year ago
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    \[(n-1)+n+(n+1)=87 \\(n+n+n)+(-1+1)=87 \\ 3n+0=87 \\ 3n=87\]

  13. freckles
    • one year ago
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    n+n+n=3n just like 4+4+4=3(4) or 12

  14. anonymous
    • one year ago
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    So answer is 29..30..31?

  15. freckles
    • one year ago
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    3n=87 gives n=29 n-1=? n+1=?

  16. anonymous
    • one year ago
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    28,29,30

  17. freckles
    • one year ago
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    put n to be 29 these questions I just asked you are equivalent to: n-1=29-1=28 n+1=29+1=30 yes 28+29+30=87

  18. freckles
    • one year ago
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    yep we had to find the number before and after 29 since we used (n-1) and n and (n+1) to be are integer where n we found to be 29

  19. anonymous
    • one year ago
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    Thank you .. Can u stick around and help me with some other problems?

  20. freckles
    • one year ago
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    I can probably help with one more

  21. anonymous
    • one year ago
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    Write 7/3 as a mixed number

  22. anonymous
    • one year ago
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    How do I start?

  23. freckles
    • one year ago
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    how many times does 3 go into 7? or how many 3's are in 7?

  24. anonymous
    • one year ago
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    2.3

  25. freckles
    • one year ago
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    7=3+3+1 how many 3's do you see?

  26. anonymous
    • one year ago
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    2

  27. freckles
    • one year ago
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    right so far we have: \[\frac{7}{3}=2 \frac{?}{3}\]

  28. freckles
    • one year ago
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    the question mark is the remainder

  29. anonymous
    • one year ago
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    1

  30. freckles
    • one year ago
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    7=3+3+1 right that 1 right there was left over

  31. freckles
    • one year ago
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    so the question mark is 1

  32. anonymous
    • one year ago
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    Thank you!

  33. freckles
    • one year ago
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    np

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