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snow_tiger [21]
3 years ago
6

A class of 144 students voted for a class president 3/4 of the students vited for you. Of the students who voted for you 5/9 are

female. How many female students vited for you?
A. 50
B. 60
C. 80
D. 108
Mathematics
2 answers:
antoniya [11.8K]3 years ago
8 0
3/4 x 144 = 108
108 x 5/9 = 60

B. 60 female students voted for you.
Lady_Fox [76]3 years ago
8 0
I believe the answer is B, 60.
Because 3/4 of 144 is 108, and 5/9 of 108 is 60.
Hope this helps :)
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Answer:

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Step-by-step explanation:

Let the height of the hill is h ft and the distance of A from the hill be x ft and distance from B to hill is y.

It is given distance between A and B is 45 ft. ∠BAO = 65° and ∠ABO = 80°.

We have to find the distance of B from the top of the hill.

Now from ΔACO tan 65 = \frac{h}{45-x} = 2.14

h=2.14(45-x)

From ΔBCO tan80 = \frac{h}{x} = 5.67

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Now h = 5.67x = 2.14(45-x)

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x = 96.3/7.81 = 12.33 ft

Therefore cos80 = \frac{x}{OB}

0.174 = \frac{12.33}{OB}

OB = \frac{12.33}{.174}=70.86=71ft.

Therefore 71 ft is the distance between B and the top of the hill.

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