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anonymous

  • one year ago

please help. Before beginning a fundraiser, Lindsey estimated that the fundraiser would earn $500. She sold 114 raffle tickets at $5 each for the fundraiser, actually earning for the fundraiser. What was the percent error in Lindsey’s estimate? Round to the nearest tenth of a percent, if necessary. A. 12.3% B. 14% C. 70% D. 77.2% (medal)

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  1. calculusxy
    • one year ago
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    Always use the formula that I gave you: \[\frac{ greater - lesser }{ actual } \times 100\]

  2. calculusxy
    • one year ago
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    The only "tricky" part here is that they just said "sold 114 raffle tickets at $5 each for the fundraiser, actually earning for the fundraiser." So that leaves you to find the actual price. This shouldn't be too hard because you just multiply: 114 times $5 and get your answer

  3. calculusxy
    • one year ago
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    @gknight

  4. anonymous
    • one year ago
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    i dont get it

  5. anonymous
    • one year ago
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    bro just do 114 times 5

  6. calculusxy
    • one year ago
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    1. 114 x 5 = ? 2. \[\frac{ $500 - ($14 \times 5) }{ ($14 \times 5) } \times 100\]

  7. calculusxy
    • one year ago
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    I have tried to make it as simple as I could.

  8. anonymous
    • one year ago
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    -614.2857 is this right @calculusxy

  9. anonymous
    • one year ago
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    i dont get it still

  10. anonymous
    • one year ago
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    Ok how many tickets did she sell times the price per ticket?

  11. anonymous
    • one year ago
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    57,000

  12. anonymous
    • one year ago
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    No, that's not it.

  13. anonymous
    • one year ago
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    570

  14. anonymous
    • one year ago
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    Ok that's it. Now what was the original prediction?

  15. anonymous
    • one year ago
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    $500

  16. anonymous
    • one year ago
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    Now the person before get how their equation works?

  17. anonymous
    • one year ago
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    what do you meen

  18. anonymous
    • one year ago
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    I'll show it. \[\frac{ 500 - (14 x 5) }{ (14 x 5) } x 100\] Make any sense? Remember PEMDAS?

  19. anonymous
    • one year ago
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    12.2807

  20. anonymous
    • one year ago
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    Hold on, I don't think thats right.

  21. anonymous
    • one year ago
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    Perenthesis first, its \[\frac{ 500 x 70 }{ 70 }\]

  22. anonymous
    • one year ago
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    500 times 70 is 35,000. What did you do next?

  23. anonymous
    • one year ago
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    fraction or divition

  24. anonymous
    • one year ago
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    I think it's divison. Correct? @calculusxy

  25. anonymous
    • one year ago
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    500

  26. anonymous
    • one year ago
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    Ok I re-did this. Do 112.3% 500 and it's about 561. So what you did was wrong. I'll try to explain this. You got the 114 being 570, the expected was 500. What is the difference?

  27. anonymous
    • one year ago
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    70

  28. anonymous
    • one year ago
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    Divide it by 5. What do you get?

  29. anonymous
    • one year ago
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    14

  30. anonymous
    • one year ago
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    Ok, 500 is 100%, Add the 14% 114% What's 114% of 500?

  31. anonymous
    • one year ago
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    14%

  32. anonymous
    • one year ago
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    right?

  33. anonymous
    • one year ago
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    No, 114%. Do 500 times 1.14 What is the result?

  34. anonymous
    • one year ago
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    570

  35. anonymous
    • one year ago
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    Ok then what is the answer to the question?

  36. anonymous
    • one year ago
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    C

  37. anonymous
    • one year ago
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    There you go. If you medal, medal the other guy.

  38. anonymous
    • one year ago
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    thank you

  39. anonymous
    • one year ago
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    Your welcome. Stay frosty,

  40. anonymous
    • one year ago
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    ok

  41. Bella2112
    • one year ago
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    i understood nothing

  42. anonymous
    • one year ago
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    lol

  43. Bella2112
    • one year ago
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    xD

  44. Bella2112
    • one year ago
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    i kept reading it and i still didnt understand

  45. anonymous
    • one year ago
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    It's pretty easy to do, just gotta find the overestimate or underestimate difference. Multiple the 114, you get 570. Take the 570 and the 500. Find the difference. 70. The 70 divide by 5 is 14. As the 570 is above the original estimated it makes it a over percentage. Aka 114% On a calc it's 1.14.

  46. anonymous
    • one year ago
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    what do you mean by xD

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