In a seventh grade class, 14 out of 30 students are boys. In simplest terms, what is the ratio of the number of boys to the numb er of girls in this grade? A. 7:15
B. 15:7
C. 7:8
D. 8:15
1 answer:
They already give you the number of boys {14}, so all you need to do is subtract 30 - 14 which will give you the ratio of girls.
It does this because 14 takes up of the seventh grade class.
So your answer is going to be 14:16 un-simplified .
However, since they ask you to put it in the simplest terms , we are going to simplify
You can do this by dividing both numbers by 2 .
=
or
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set one side to zero
subtract 2 from both sides
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this is not factorable by normal means so use quadratic formula which is if you have the equation in ax^2+bx+c=0 form you can solve for x if you put it into this equation quadratic formula
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a=3
b=4
c=-2
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the answer is C
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65x+105=y
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U should get the app "photomath" it will help u out alot!!!