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Mathematics 20 Online
OpenStudy (anonymous):

Ms. Doe has 110 students. On Monday, 15 of her students were absent. What percent of the class was absent?

OpenStudy (anonymous):

Help?

OpenStudy (nottim):

Did anything on this yet?

OpenStudy (anonymous):

What do you mean?

OpenStudy (nottim):

What have you done so far on this question?

OpenStudy (anonymous):

if there were 100 points on a test and you got 10 points off, what is your grade?

OpenStudy (nottim):

Because if you attempted it, we can see what needs help, and we will work to assist on ficing that.

OpenStudy (anonymous):

115/110=%/100

OpenStudy (nottim):

not really, help...

OpenStudy (anonymous):

We were told to set up proportions.

OpenStudy (nottim):

yes, proportions is at work here

OpenStudy (anonymous):

So I set the proportion up incorrectly?

OpenStudy (anonymous):

I'm guessing you meant 15 not 115. if that is the case, u did it right

OpenStudy (nottim):

just slightly. How did the class gain 15 students from 110 when 15 students were absent?

OpenStudy (anonymous):

Oh. That's what my proportion says? I had no idea. Sorry.

OpenStudy (anonymous):

Can you help me do it the right way?

OpenStudy (anonymous):

proportions, in my opinion is an overkill. \[\frac{15 \text{ absent}}{110 \text { total}}\]gives you decimal. To convert to a percent is simply to multiply it by 100. It is really the same thing, but personally it is more confusing with proportions vs a simple conversion factor.

OpenStudy (anonymous):

Yes, I got a very long decimal.

OpenStudy (anonymous):

How do I fix that?

OpenStudy (anonymous):

round

OpenStudy (anonymous):

reread my post

OpenStudy (anonymous):

ohhhh. let me x100

OpenStudy (anonymous):

one moment,please.

OpenStudy (anonymous):

Hmmm.... I got an even longer decimal

OpenStudy (anonymous):

I have to go...will you please leave an explanation in a reply?

OpenStudy (anonymous):

Oh,good. thanks.

OpenStudy (anonymous):

I was wrong

OpenStudy (anonymous):

Oh. bad.

OpenStudy (anonymous):

thats okay :)

OpenStudy (anonymous):

.136 36 is repeating 13.6% and it repeats 36 after

OpenStudy (anonymous):

that is correct, sry I missed typed in my calc

OpenStudy (anonymous):

could you type a brief explanation?

OpenStudy (anonymous):

this whole feed is a good explanation

OpenStudy (anonymous):

Okay. Thanks.

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