## 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)

1. calculusxy

Always use the formula that I gave you: $\frac{ greater - lesser }{ actual } \times 100$

2. 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

3. calculusxy

@gknight

4. anonymous

i dont get it

5. anonymous

bro just do 114 times 5

6. calculusxy

1. 114 x 5 = ? 2. $\frac{ 500 - (14 \times 5) }{ (14 \times 5) } \times 100$

7. calculusxy

I have tried to make it as simple as I could.

8. anonymous

-614.2857 is this right @calculusxy

9. anonymous

i dont get it still

10. anonymous

Ok how many tickets did she sell times the price per ticket?

11. anonymous

57,000

12. anonymous

No, that's not it.

13. anonymous

570

14. anonymous

Ok that's it. Now what was the original prediction?

15. anonymous

\$500

16. anonymous

Now the person before get how their equation works?

17. anonymous

what do you meen

18. anonymous

I'll show it. $\frac{ 500 - (14 x 5) }{ (14 x 5) } x 100$ Make any sense? Remember PEMDAS?

19. anonymous

12.2807

20. anonymous

Hold on, I don't think thats right.

21. anonymous

Perenthesis first, its $\frac{ 500 x 70 }{ 70 }$

22. anonymous

500 times 70 is 35,000. What did you do next?

23. anonymous

fraction or divition

24. anonymous

I think it's divison. Correct? @calculusxy

25. anonymous

500

26. 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?

27. anonymous

70

28. anonymous

Divide it by 5. What do you get?

29. anonymous

14

30. anonymous

Ok, 500 is 100%, Add the 14% 114% What's 114% of 500?

31. anonymous

14%

32. anonymous

right?

33. anonymous

No, 114%. Do 500 times 1.14 What is the result?

34. anonymous

570

35. anonymous

Ok then what is the answer to the question?

36. anonymous

C

37. anonymous

There you go. If you medal, medal the other guy.

38. anonymous

thank you

39. anonymous

Your welcome. Stay frosty,

40. anonymous

ok

41. Bella2112

i understood nothing

42. anonymous

lol

43. Bella2112

xD

44. Bella2112

i kept reading it and i still didnt understand

45. 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.

46. anonymous

what do you mean by xD