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Amy876

  • 2 years ago

3. The sum of three consecutive even integers is 84. What is the least of these numbers? (Points : 1) -34 -30 -26 30

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  1. dpaInc
    • 2 years ago
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    let x be the least of these numbers... since they're consecutive, the next one would be (x+2), and the next one after that is (x+4)... since their sum is 84, you can write it out as: x + (x+2) + (x+4) = 84 now all u gotta do is solve....

  2. Amy876
    • 2 years ago
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    How do I solve that???

  3. Nameless
    • 2 years ago
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    combine like terms and isolate x

  4. Amy876
    • 2 years ago
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    I dont know how to do that

  5. Nameless
    • 2 years ago
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    x + x + x are all the same.. so add them up = 3x... same with the 4 2

  6. Nameless
    • 2 years ago
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    now you should have 3x + 6 = 84. now you want your x term on one side of the equation and the numbers on the other side.

  7. Amy876
    • 2 years ago
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    is it 18?

  8. Nameless
    • 2 years ago
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    subtract 6 from both sides... thus 3x + 6 - 6 = 84 - 6

  9. Nameless
    • 2 years ago
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    so 3x = 78. now you need to get rid of that 3.

  10. Amy876
    • 2 years ago
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    How?

  11. Nameless
    • 2 years ago
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    you can divide by the coefficient of x.. in this case 3. thus 3x/3 = 78/3

  12. Nameless
    • 2 years ago
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    that will give you x = the result of 78/3

  13. Amy876
    • 2 years ago
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    26? :)

  14. Amy876
    • 2 years ago
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    oh wait -26?

  15. Nameless
    • 2 years ago
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    yep.. now check.. 26, + 28 + 30?

  16. Nameless
    • 2 years ago
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    i dont think someone can be negative years old.

  17. Amy876
    • 2 years ago
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    positive 26 is NOT an option :(

  18. Amy876
    • 2 years ago
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    what?

  19. Nameless
    • 2 years ago
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    ooh i thought it was an age question. sorry

  20. Amy876
    • 2 years ago
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    its ok :/

  21. Nameless
    • 2 years ago
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    all those negatives dont make any sense...it is .. i think.. impossible for you to take a negative number with 3 consecutive even integers and add them up to 24.

  22. Nameless
    • 2 years ago
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    and 30 doesnt work

  23. Amy876
    • 2 years ago
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    Nope it was 30

  24. Amy876
    • 2 years ago
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    I just got the answers

  25. Nameless
    • 2 years ago
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    30+32+34 is 96?

  26. Nameless
    • 2 years ago
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    good luck

  27. Amy876
    • 2 years ago
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    thanks

  28. dpaInc
    • 2 years ago
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    30 + 32 + 34 \(\large \ne 84\) so the answer cannot be 30.... the answer to your question is 26... 26 + 28 + 30 = 84 looks like the correct choice is not there or the problem was mistyped... this is your orginal question: 3. The sum of three consecutive even integers is 84. What is the least of these numbers? (Points : 1) -34 -30 -26 30

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