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Mathematics 9 Online
OpenStudy (anonymous):

Will give medal! Please help :) Based on the histogram, how many students were included in the survey? What percentage of the students surveyed babysat for at most three hours last weekend? Show your work.

OpenStudy (anonymous):

OpenStudy (anonymous):

Pro tip- if you want to catch the attention of someone on a question, add an @ in front of their name. @shadow22

OpenStudy (anonymous):

ok! :)

OpenStudy (anonymous):

To find how many students were included in the survey, you can just add the number of students for each time period (0-3 h, 4-7 h, etc), as the time periods do not overlap.

OpenStudy (anonymous):

So 80 students

OpenStudy (anonymous):

If students babysat for at most 3h, then we want to know what percentage the number of students in the 0-3h time period make up. The total number of students is 80, and the number of students in the 0-3h time period is 20.

OpenStudy (anonymous):

So, you just need to convert 20/80 into a percentage. :)

OpenStudy (anonymous):

so do i divide 20/80

OpenStudy (anonymous):

Then multiply by 100, yes.

OpenStudy (anonymous):

so 25% percent

OpenStudy (anonymous):

Yes.

OpenStudy (anonymous):

thank you so much... you are really good at math!! :)

OpenStudy (anonymous):

I am in grade 11, so I'd hope so. Don't worry, it'll seem simple to you in a few years too.

OpenStudy (anonymous):

Hopefully... lol

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