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UmmmHELP

  • 2 years ago

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  1. UmmmHELP
    • 2 years ago
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    |dw:1353013284316:dw|

  2. amistre64
    • 2 years ago
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    we can equate vertex with vertex then; a=p b=q c=r for starters

  3. amistre64
    • 2 years ago
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    since b=q, and they give you eqaustions for b and q; then write the equations equal to each other and it should be a simple matter to solve for v

  4. UmmmHELP
    • 2 years ago
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    yeah but Im not sure how to do that

  5. amistre64
    • 2 years ago
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    what is the equation for b?

  6. UmmmHELP
    • 2 years ago
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    5v+6

  7. amistre64
    • 2 years ago
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    what is the equation for q? since b = q then its also true that: (equation for b) = (equation for q)

  8. amistre64
    • 2 years ago
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    good, and can you finish the setup? ill help you thru it once i see that you can at least set it up

  9. UmmmHELP
    • 2 years ago
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    8v-9 is Q

  10. UmmmHELP
    • 2 years ago
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    so 8v-9=5v+6??

  11. amistre64
    • 2 years ago
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    good, then (equation for b) = (equation for q) 5v+6 = 8v-9

  12. UmmmHELP
    • 2 years ago
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    so then do you subtract 5 from both sides?

  13. amistre64
    • 2 years ago
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    close, there is a v stuck to the 5, so lets subtract 5v from each side for starters

  14. amistre64
    • 2 years ago
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    5v+6 = 8v-9 -5v -5v ---------------- 6 = 3v - 9 what do you think another good move would be?

  15. UmmmHELP
    • 2 years ago
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    add 9 to both sides?

  16. amistre64
    • 2 years ago
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    correct 6 = 3v - 9 +9 +9 ----------- 15 = 3v only one more move left, what do you think we should do?

  17. UmmmHELP
    • 2 years ago
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    divide 3 on both sides to get v

  18. amistre64
    • 2 years ago
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    excellent 15/3 = 3v/3 5 = v so now that we know a normal looking value for v, we can use it to find the values of b and q right?

  19. UmmmHELP
    • 2 years ago
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    yeah

  20. amistre64
    • 2 years ago
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    then what is our solution :)

  21. UmmmHELP
    • 2 years ago
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    Like plug 5 into the original problem?

  22. amistre64
    • 2 years ago
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    yes, and it should work in either equation for b or for q and give us the same value

  23. UmmmHELP
    • 2 years ago
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    5(5)-9?

  24. amistre64
    • 2 years ago
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    it looks like you might have blended the 2 equations into an abomination of desolation :) b = 5v+6 = 5(5)+6 q = 8v-9 =8(5)-9

  25. UmmmHELP
    • 2 years ago
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    so 16 and 31? I feel like thats totally off

  26. amistre64
    • 2 years ago
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    b = 5v+6 = 5(5)+6 = 25 + 6 = 31 q = 8v-9 =8(5)-9 = 40 - 9 = 31 b = q = 31

  27. UmmmHELP
    • 2 years ago
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    OH haha DUH sorry I got it now!

  28. amistre64
    • 2 years ago
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    ;) good luck

  29. UmmmHELP
    • 2 years ago
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    Thank you!

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