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anonymous

  • one year ago

Erika calculated that she would spend $115 on school supplies this year. She actually spent $82.50 on school supplies. What is Erika’s percent of error

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  1. anonymous
    • one year ago
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    i worked this one out and still could not figure it out.

  2. misty1212
    • one year ago
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    ok two steps for this question the first think you need is the actual error, not the percent in other words \[115-82.50\]

  3. anonymous
    • one year ago
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    72.5

  4. misty1212
    • one year ago
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    hmm not what i get...

  5. anonymous
    • one year ago
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    32.5

  6. misty1212
    • one year ago
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    that is better !

  7. anonymous
    • one year ago
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    i did it backwards on accident.

  8. misty1212
    • one year ago
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    then compare to the original amount by division which is a complicated way of saying compute \[\frac{32.5}{115}\]or on a calculator do \[32.5\div 115\]

  9. misty1212
    • one year ago
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    you get a rather long decimal, so round a little what do you get?

  10. anonymous
    • one year ago
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    0.300

  11. anonymous
    • one year ago
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    sorry, im not good at dividing

  12. misty1212
    • one year ago
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    maybe rounded a little too much

  13. misty1212
    • one year ago
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    i would say perhaps \(0.28\)

  14. misty1212
    • one year ago
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    like i said, use a calculator you got one?

  15. anonymous
    • one year ago
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    i did, im not good at rounding either.

  16. misty1212
    • one year ago
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    actually i am being silly if you are on a computer, do not bother with a calculator, use this http://www.wolframalpha.com/input/?i=32.5%2F115

  17. misty1212
    • one year ago
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    you can see that you get about \(0.28\) which, as a percent, is \(28\%\)

  18. anonymous
    • one year ago
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    yes

  19. misty1212
    • one year ago
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    and that is your final answer

  20. misty1212
    • one year ago
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    if you are going to round for percents, probably good to round to two places at least

  21. anonymous
    • one year ago
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    Yea that sounds better, but thankyou

  22. misty1212
    • one year ago
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    you are quite welcome !

  23. misty1212
    • one year ago
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    now i have a question what is your favorite horror movie?

  24. anonymous
    • one year ago
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    oh my favorite horror movie would have to be the human centipede

  25. misty1212
    • one year ago
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    eeeewwwwwww!!

  26. misty1212
    • one year ago
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    it pretty gross for sure i like old ones like reanimator

  27. anonymous
    • one year ago
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    i will have to look into that!

  28. misty1212
    • one year ago
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    definitely also evil dead if you have never seen it

  29. anonymous
    • one year ago
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    Nope i have not, that will definitely be on my movies to watch list.

  30. anonymous
    • one year ago
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    Who's seen sharknado

  31. misty1212
    • one year ago
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    not me

  32. anonymous
    • one year ago
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    It's not a real horror movie but it's really funny and kinda horror ish

  33. anonymous
    • one year ago
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    You gotta watch it you'll love it

  34. anonymous
    • one year ago
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    @juliastevens have u seen it

  35. anonymous
    • one year ago
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    actually i have, i watched it when shark week was on tv.

  36. anonymous
    • one year ago
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    It's funny isn't it

  37. anonymous
    • one year ago
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    yes it is!

  38. anonymous
    • one year ago
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    Did you see the third one?

  39. anonymous
    • one year ago
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    No i dont think so.

  40. anonymous
    • one year ago
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    Omg u have to watch that one its soooooooo good

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