anonymous
  • anonymous
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)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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calculusxy
  • calculusxy
Always use the formula that I gave you: \[\frac{ greater - lesser }{ actual } \times 100\]
calculusxy
  • calculusxy
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
calculusxy
  • calculusxy
@gknight

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anonymous
  • anonymous
i dont get it
anonymous
  • anonymous
bro just do 114 times 5
calculusxy
  • calculusxy
1. 114 x 5 = ? 2. \[\frac{ $500 - ($14 \times 5) }{ ($14 \times 5) } \times 100\]
calculusxy
  • calculusxy
I have tried to make it as simple as I could.
anonymous
  • anonymous
-614.2857 is this right @calculusxy
anonymous
  • anonymous
i dont get it still
anonymous
  • anonymous
Ok how many tickets did she sell times the price per ticket?
anonymous
  • anonymous
57,000
anonymous
  • anonymous
No, that's not it.
anonymous
  • anonymous
570
anonymous
  • anonymous
Ok that's it. Now what was the original prediction?
anonymous
  • anonymous
$500
anonymous
  • anonymous
Now the person before get how their equation works?
anonymous
  • anonymous
what do you meen
anonymous
  • anonymous
I'll show it. \[\frac{ 500 - (14 x 5) }{ (14 x 5) } x 100\] Make any sense? Remember PEMDAS?
anonymous
  • anonymous
12.2807
anonymous
  • anonymous
Hold on, I don't think thats right.
anonymous
  • anonymous
Perenthesis first, its \[\frac{ 500 x 70 }{ 70 }\]
anonymous
  • anonymous
500 times 70 is 35,000. What did you do next?
anonymous
  • anonymous
fraction or divition
anonymous
  • anonymous
I think it's divison. Correct? @calculusxy
anonymous
  • anonymous
500
anonymous
  • anonymous
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?
anonymous
  • anonymous
70
anonymous
  • anonymous
Divide it by 5. What do you get?
anonymous
  • anonymous
14
anonymous
  • anonymous
Ok, 500 is 100%, Add the 14% 114% What's 114% of 500?
anonymous
  • anonymous
14%
anonymous
  • anonymous
right?
anonymous
  • anonymous
No, 114%. Do 500 times 1.14 What is the result?
anonymous
  • anonymous
570
anonymous
  • anonymous
Ok then what is the answer to the question?
anonymous
  • anonymous
C
anonymous
  • anonymous
There you go. If you medal, medal the other guy.
anonymous
  • anonymous
thank you
anonymous
  • anonymous
Your welcome. Stay frosty,
anonymous
  • anonymous
ok
Bella2112
  • Bella2112
i understood nothing
anonymous
  • anonymous
lol
Bella2112
  • Bella2112
xD
Bella2112
  • Bella2112
i kept reading it and i still didnt understand
anonymous
  • anonymous
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.
anonymous
  • anonymous
what do you mean by xD

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