Question

HI @terry1234566

Answer 1

Hello, do you have a math question you would like to ask?

Answer 2

Oh cool jiggly puff

Answer 3

Yes

Answer 4

Raul calculated that he would spend $125 on school supplies this year. He actually spent $87.50 on school supplies. What is Raul’s percent of error?

Answer 5

42.9%
37.5%
30%
3%

Answer 6

I think its 30%

Answer 7

https://www.mathsisfun.com/numbers/percentage-error.html
\[percent~error = \frac{ |approximate - exact |}{ exact } * 100\]

Answer 8

no, it is not quite 30% :)

Answer 9

((125 - 87.5) / |87.5|) * 100 =
(37.5 / 87.5) * 100 =
0.428571 * 100 =
42.8571% will be change

Round that to 42.9% A.

Answer 10

thx

Answer 11

Jiggly is it right

Answer 12

42.9

Answer 13

yes, that is correct :)

Answer 14

Ok thx for everything

Answer 15

Wait

Answer 16

One more

Answer 17

Marcus spent 10 hours doing his homework last week. This week he spent 11 hours doing homework. He says that he spent 110% more time doing homework this week. Is he correct? Show your work to justify your decision.

Answer 18

would it be 10% more time because 11-10 is 1 and 1 is 10% of ten. So he is not correct

Answer 19

very good :)
I think you are right ^_^

Answer 20

It is being laggy