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Mathematics 10 Online
OpenStudy (anonymous):

MEDALLLL PLZZZ HELPP!! 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? A) 42.9% B)37.5% C)30% D)3%

OpenStudy (anonymous):

@taylorz115820

OpenStudy (anonymous):

I am not quite sure how to do this it has been a while

OpenStudy (anonymous):

Do u subtract 125-87.50? It gives u B? @taylorz115820

OpenStudy (anonymous):

maybe ask @jagr2713

OpenStudy (anonymous):

@jagr2713

Mehek (mehek14):

\(87.5/125 = 0.7\) \(0.7 = 70\)% \(100\)% \(- 70\)% \(= 30\)%

OpenStudy (anonymous):

Thanks :) @Mehek14

Mehek (mehek14):

yw

OpenStudy (anonymous):

Can u help me with another question? @Mehek14

Mehek (mehek14):

sorry I gtg

OpenStudy (anonymous):

its okay

OpenStudy (anonymous):

Yeah he is right

OpenStudy (anonymous):

It should be 30%

OpenStudy (anonymous):

Can u help me with another question @taylorz115820

OpenStudy (anonymous):

What is it?

OpenStudy (anonymous):

Evan spent 20 hours doing homework last week. This week he spent 25 hours doing homework. He says that he spent 125% more time doing homework this week. Is he correct? Show your work to justify your decision.

OpenStudy (anonymous):

@taylorz115820

OpenStudy (anonymous):

So what you do to check is do 20•1.25

OpenStudy (anonymous):

1.25 being 125% as a decimal

OpenStudy (anonymous):

if that = 25 then he is correct

OpenStudy (anonymous):

Thanks you are correct :) @taylorz115820

OpenStudy (anonymous):

Does that make sense?

OpenStudy (anonymous):

Yea I knew it at first! @taylorz115820

OpenStudy (anonymous):

Ok good

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