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Mathematics 21 Online
OpenStudy (anonymous):

PLEASE HELP!!!!!!!!!! I ONLY NEED 5 MORE ANSWERS TO GO TO BED!!!!!!!!!!!!!! For a summer fundraiser, Rob is doing manual labor to help several families do home improvement projects. He is tracking the amount of time he spends each week with a spreadsheet. If his spreadsheet shows that during the past two weeks, he spent a total of 4,800 minutes working, how many days and hours has he worked?

OpenStudy (earthcitizen):

divide by 3600

OpenStudy (anonymous):

HMM I CANT SEEM TO GET THE RIGHT ANSWER

OpenStudy (anonymous):

I THINK IT MIGHT BE 3 DAYS AND 20 HOURS

OpenStudy (earthcitizen):

multiply 4800 by 60

OpenStudy (anonymous):

AND THAT = 2880000

OpenStudy (earthcitizen):

yup, divide by 3600

OpenStudy (anonymous):

800

OpenStudy (earthcitizen):

80hrs

OpenStudy (anonymous):

YA BUT....

OpenStudy (earthcitizen):

finally, divide 80 by 24

OpenStudy (anonymous):

IK BUT I GET 3 DAYS AND NOT THE RIGHT # OF DAYS

OpenStudy (anonymous):

I MEAN HOURS

OpenStudy (earthcitizen):

3days and 30hrs

OpenStudy (anonymous):

IN MY ANSWER OPTIONS THERE IS 3 DAYS 20 HOURS AND 3 DAYS AND 8 HOURS

OpenStudy (earthcitizen):

prolly, go with 3 days and 20hrs

OpenStudy (anonymous):

OK..........

OpenStudy (anonymous):

NEXT ONE IS :

OpenStudy (anonymous):

Which of the following questions can be answered using the percent equation 50 = 7% *b

OpenStudy (earthcitizen):

medal ?

OpenStudy (anonymous):

OK OK xD

OpenStudy (earthcitizen):

ty

OpenStudy (anonymous):

YW

OpenStudy (earthcitizen):

what's the p ?

OpenStudy (earthcitizen):

are we looking for b in 50 = 7% *b

OpenStudy (anonymous):

NO WAIT

OpenStudy (anonymous):

THESE ARE THE OPTIONS:

OpenStudy (anonymous):

a) What number is 50 percent of 7?

OpenStudy (anonymous):

b)7 is what percent of 50?

OpenStudy (anonymous):

c) 7 is 50 percent of what number?

OpenStudy (earthcitizen):

\[(50/100)\times7 = 3.5\]

OpenStudy (anonymous):

AND d) 50 is 7 percent of what number?

OpenStudy (anonymous):

Which of the following questions can be answered using the percent equation 50 = 7% *b

OpenStudy (earthcitizen):

50 is 7 percent of an unknown number, I'll go with D tho

OpenStudy (anonymous):

Casey performs a survey to determine what students think about the pizza served in the cafeteria. Which is an unbiased representative sample of the population? A) the last twenty students to buy lunch B) every tenth student that enters the cafeteria C) the first 30 students to buy pizza D) every fifth student that buys something other than pizza

OpenStudy (earthcitizen):

there's no calculation ?

OpenStudy (anonymous):

WHAT DO U MEAN?

OpenStudy (earthcitizen):

i mean is it a math question ?

OpenStudy (anonymous):

yea

OpenStudy (earthcitizen):

unbiased representation...idk how to answer that

OpenStudy (anonymous):

ok thnx any way

OpenStudy (earthcitizen):

no p, yw

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