anonymous
  • anonymous
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
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
i worked this one out and still could not figure it out.
misty1212
  • misty1212
ok two steps for this question the first think you need is the actual error, not the percent in other words \[115-82.50\]
anonymous
  • anonymous
72.5

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misty1212
  • misty1212
hmm not what i get...
anonymous
  • anonymous
32.5
misty1212
  • misty1212
that is better !
anonymous
  • anonymous
i did it backwards on accident.
misty1212
  • misty1212
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 \[32.5\div 115\]
misty1212
  • misty1212
you get a rather long decimal, so round a little what do you get?
anonymous
  • anonymous
0.300
anonymous
  • anonymous
sorry, im not good at dividing
misty1212
  • misty1212
maybe rounded a little too much
misty1212
  • misty1212
i would say perhaps \(0.28\)
misty1212
  • misty1212
like i said, use a calculator you got one?
anonymous
  • anonymous
i did, im not good at rounding either.
misty1212
  • misty1212
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
misty1212
  • misty1212
you can see that you get about \(0.28\) which, as a percent, is \(28\%\)
anonymous
  • anonymous
yes
misty1212
  • misty1212
and that is your final answer
misty1212
  • misty1212
if you are going to round for percents, probably good to round to two places at least
anonymous
  • anonymous
Yea that sounds better, but thankyou
misty1212
  • misty1212
you are quite welcome !
misty1212
  • misty1212
now i have a question what is your favorite horror movie?
anonymous
  • anonymous
oh my favorite horror movie would have to be the human centipede
misty1212
  • misty1212
eeeewwwwwww!!
misty1212
  • misty1212
it pretty gross for sure i like old ones like reanimator
anonymous
  • anonymous
i will have to look into that!
misty1212
  • misty1212
definitely also evil dead if you have never seen it
anonymous
  • anonymous
Nope i have not, that will definitely be on my movies to watch list.
anonymous
  • anonymous
Who's seen sharknado
misty1212
  • misty1212
not me
anonymous
  • anonymous
It's not a real horror movie but it's really funny and kinda horror ish
anonymous
  • anonymous
You gotta watch it you'll love it
anonymous
  • anonymous
@juliastevens have u seen it
anonymous
  • anonymous
actually i have, i watched it when shark week was on tv.
anonymous
  • anonymous
It's funny isn't it
anonymous
  • anonymous
yes it is!
anonymous
  • anonymous
Did you see the third one?
anonymous
  • anonymous
No i dont think so.
anonymous
  • anonymous
Omg u have to watch that one its soooooooo good

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