Hey guys can u pls help me.
2 answers:
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Answer:
111
Step-by-step explanation:
It is given that the student to faculty ratio at a small college is 17:3.
Let number of students and faculty members are 17x and 3x respectively.
It is given that total number of students and faculty is 740.
Divide both sides by 20.
Number of student
Number of faculty members
Therefore, there are 111 faculty members at the college.
Answer:
Height of an oak tree= 9 meters
Height of a pine tree = 12 meters
Step-by-step explanation:
Given:
The combined height of 1 oak tree and 1 pine tree = 21 meters
Height of 4 oak trees = 24 meters more than 1 pine tree
To find the height of 1 pine tree and height of one oak tree.
Solution:
Let the height of one oak tree be = meters.
Let height of one pine tree = meters.
Combined height can be given as :
-------------[1]
Height of 4 oak trees = 24 meters more than 1 pine tree
The above statement can be given as :
------------[2]
Rearranging equation [2] by subtracting both sides by .
-------------[2]
Adding rearranged equation [2] to [1].
+--------------------
Dividing both sides by 5.
∴
Plugging in in equation [1]
Subtracting both sides by 9.
Height of an oak tree= 9 meters
Height of a pine tree = 12 meters
Step-by-step explanation:
Recall that
so we can write our original equation as
or
Let so our equation becomes
which gives us two roots: and
.
This is equivalent to and