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Mathematics 10 Online
OpenStudy (griffindore):

Help I will medal

OpenStudy (griffindore):

Kelly read 30 pages of her 300-page book in 6 hours. At this rate, how long will it take her to read the entire book? 60 hours 5 hours 6 hours 30 hours

OpenStudy (anonymous):

30p=6h so divide 300 by 30

OpenStudy (griffindore):

ya its 10 right?

OpenStudy (anonymous):

yes then multiply that by 6

OpenStudy (griffindore):

60

OpenStudy (anonymous):

yes :D

OpenStudy (griffindore):

so its 60% is the awnser?

OpenStudy (griffindore):

oh i mean 60 hours

OpenStudy (anonymous):

yes

OpenStudy (griffindore):

oh thanks can you help me with like 2 more

OpenStudy (anonymous):

maybe I'm better at some things than others

OpenStudy (griffindore):

the next ones with fractions

OpenStudy (griffindore):

can you walk me through it but dont give me the awnser

OpenStudy (anonymous):

ya if I can understand it

OpenStudy (griffindore):

Marisa painted one-half of her bedroom in three-fourths of an hour. At this rate, how long would it take her the paint the entire room? three-eighths of an hour eight-thirds of an hour four-sixths of an hour six-fourths of an hour

OpenStudy (anonymous):

1/2 of b=3/4 of an hour so the other half of her room would be 1/2of b=3/4 does that make sense

OpenStudy (griffindore):

sorta

OpenStudy (anonymous):

ok so she did 1/2 of her room and that took 3/4ths of an hour so it would take the same amount of time to do the other half

OpenStudy (griffindore):

oh ok

OpenStudy (griffindore):

so its D

OpenStudy (griffindore):

:D

OpenStudy (anonymous):

yep

OpenStudy (griffindore):

Ill d this one on my own tell me if i mess up or do some thing wrong

OpenStudy (griffindore):

Erika calculated that she would spend $115 on school supplies this year. She actually spent $82.50 on school supplies. What is Erika’s percent of error? 28.3% 2.8% 39.4% 32.5%

OpenStudy (griffindore):

oh acually i have no idea

OpenStudy (griffindore):

I divide something and 82.50 to get a percentage right?

OpenStudy (anonymous):

or I think that maybe you could subtract 115 by 82 and get a close estimate but i'm not sure

OpenStudy (griffindore):

Oh can we try both

OpenStudy (anonymous):

sure

OpenStudy (griffindore):

Ok well try my idea then yours

OpenStudy (griffindore):

Oh should i start a new question

OpenStudy (anonymous):

good idea

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