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Mathematics 7 Online
OpenStudy (anonymous):

Amanda read 15 pages of her 150-page book in 2 hours. At this rate, how long will it take her to read the entire book? 2 hours 5 hours 10 hours 20 hours

OpenStudy (anonymous):

@Brostep0s

OpenStudy (anonymous):

@shinalcantara

OpenStudy (kamibug):

Divide 150 by 15, then multiply what you get by 2.

OpenStudy (anonymous):

10 hours?

OpenStudy (anonymous):

which should be 10 *2=20

OpenStudy (anonymous):

oh so then its 20, right?

OpenStudy (kamibug):

Yup. :)

OpenStudy (anonymous):

thanks! can u help me with another one?

OpenStudy (kamibug):

I'll do my best :D

OpenStudy (anonymous):

Kelsey painted one-fourth of her bedroom in three-sevenths of an hour. At this rate, how long would it take her to paint the entire room? three over twenty-eight of an hour twenty-eight over three of an hour twelve over seven of an hour seven over twelve of an hour

OpenStudy (anonymous):

are you sure? @KamiBug

OpenStudy (anonymous):

1.71

OpenStudy (anonymous):

ook

OpenStudy (anonymous):

hmm... what do you think @Brostep0s

OpenStudy (anonymous):

@Brostep0s what happened?

OpenStudy (anonymous):

is @KamiBug correct? is it 12/7?

OpenStudy (kamibug):

The whole room is 4/4, so you'd multiply 1/4 by 4 to get that. So, since it's proportional, you'd do the same to 3/7. Multiply it by 4...

OpenStudy (kamibug):

Does that make sense? Lol

OpenStudy (anonymous):

1.71?

OpenStudy (kamibug):

Yeah, which as a fraction is 12/7

OpenStudy (anonymous):

yea, that sounds right.

OpenStudy (anonymous):

ok, can u help me with 2 more?

OpenStudy (kamibug):

Sure

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