A few days ago
Anonymous

ratio. math. help? pleasee!?

the ratio of the number of all the students(freshmen, sophmores, juniors, and seniors)

at the university to the number of members at the university is 15:1. there are 663 freshmen and 179 faculty members.how many members are not freshmen?

can someone help and explain how to do it?

Top 3 Answers
A few days ago
original_pet

Favorite Answer

Ok, the problem gave you a ratio in this form:

Total Students : Faculty

15 : 1

Then it continued on and said that there are 663 freshmen and 179 faculty. First, we are going to have to use the 179 faculty members in the ratio:

Total Students : Faculty

15 : 1

Total Students : 179

Remember that the original ratio says that for every 1 faculty member there are 15 students. So, if we had 2 faculty members we’d have 30 students. And if we had 3 faculty we’d have 45 students. And 4 students would be (4 * 15 =) 60 students… so what about 179 students? Well… 179 * 15 = 2685. So now are ratio becomes:

Total Students : Faculty

15 : 1

2685 : 179

Now we know total students is 2685 so we use subtraction to remove the freshmen:

2685 – 663 = 2022

There are 2022 students that are not freshmen.

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A few days ago
chickachickawhat
I think you do 179*15 because that would get you the total number of students – then divide 663 by the number you just found and that gives you the % of students that are freshmen – then just turn that into a ratio
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A few days ago
lilkrazyme3
you have to put it into fraction form for it to be easier…

15 over 1 and X over 179.. then you cross- multiply which gives you…

15 x 179= X

then you subtract 663 from X

and that gives you the answer… 2022

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