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anonymous

  • 5 years ago

hello i need help,hurry im doing a timed test 4a+7b=-5 8a+4c=36 6b+4c=-14

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  1. anonymous
    • 5 years ago
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    Did you use the calculator provided on this website? is this algebra? what are you trying to do, factoring?

  2. anonymous
    • 5 years ago
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    its algebra 2! and no which calculater do i use...its says to solve

  3. anonymous
    • 5 years ago
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    the system of equations

  4. anonymous
    • 5 years ago
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    solve by substitution? be specific?

  5. anonymous
    • 5 years ago
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    it didnt say.. it just says solve system of equations

  6. anonymous
    • 5 years ago
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    if it's Solve by Substitution Method: c=1

  7. anonymous
    • 5 years ago
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    according to the calculator provided here.

  8. anonymous
    • 5 years ago
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    okay so i plug 1 into all the c's?

  9. anonymous
    • 5 years ago
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    a=-7b/4-5/4 b=2c/7-23/7 c=1 according to the calculator provided in this website.

  10. anonymous
    • 5 years ago
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    that's if you are trying to Solve by Substitution Method:

  11. anonymous
    • 5 years ago
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    your thebest

  12. anonymous
    • 5 years ago
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    is it correct?

  13. anonymous
    • 5 years ago
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    idk i will find out what about this one it sayswithout graphing classify the following system as independent dependent or inconsistent

  14. anonymous
    • 5 years ago
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    2x-y=3 6x-3y=0

  15. anonymous
    • 5 years ago
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    according to the calculator provided it is incosistent

  16. anonymous
    • 5 years ago
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    okay thanks what about this one it says solve the systems of equattions useing matrix

  17. anonymous
    • 5 years ago
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    x+3y=22 2x-y=9

  18. anonymous
    • 5 years ago
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    it says x=7, y=5

  19. anonymous
    • 5 years ago
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    just go to this website and solve for yourself http://www.freemathhelp.com/algebra-help.html scroll all the way down and you will find the calculator.

  20. anonymous
    • 5 years ago
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    i dont understand how to use it help me with one more please

  21. anonymous
    • 5 years ago
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    solve the system by elimination 4a+4b-c+=-6 8a+6b+c=-5 6z-4b-6c=-22

  22. anonymous
    • 5 years ago
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    on the first equation after c+ then what?

  23. anonymous
    • 5 years ago
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    ooops let me write it over its 4a+4b-c=-6

  24. anonymous
    • 5 years ago
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    and the last one after the 6 its and a,,im in a hurry :)

  25. anonymous
    • 5 years ago
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    you mean this on the last eq. 6z-4b-6a=-22

  26. anonymous
    • 5 years ago
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    nooo the last one was 6a-4b-6b=-22

  27. anonymous
    • 5 years ago
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    is it Solve by Addition/Elimination Method:?

  28. anonymous
    • 5 years ago
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    probably?

  29. anonymous
    • 5 years ago
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    if so then the calculator says can't be solve in addition method but on Solve by Gaussian Elimination: its (-11/6, 11/10, 46/15)

  30. anonymous
    • 5 years ago
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    ok

  31. anonymous
    • 5 years ago
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    thanks what about this one: find the maximum valube of the objective function and the calues of x and y for which it occurs

  32. anonymous
    • 5 years ago
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    f=2x+y 3x+5y(less than or greater then sign) 45 2x+4y(less than or greater then sign) 32

  33. anonymous
    • 5 years ago
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    hello

  34. anonymous
    • 5 years ago
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    helllo

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