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Mariulka [41]
3 years ago
12

4/15 of the 315members of a book club are males, how many in the group are females

Mathematics
2 answers:
ladessa [460]3 years ago
4 0
If 4/15 are males, then you can assume that the rest (11/15) are females.

Find what is 11/15 if 315 using a proportion.

11 f
— = —
15 315


In this proportion, multiply 15 by 21 to get 315, so multiply 11 by 21 to get 231, which is the value of F.


Therefore, f=231. In other words, there are 231 females in the book club.

Hope this helps!
Over [174]3 years ago
3 0
The answer is 231 females
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klemol [59]

Answer:

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Step-by-step explanation:

An obtuse triangle is a triangle that has one obtuse angle. Obtuse angle is an angle that is greater than 90 degrees but less than 180 degrees.

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Therefore, an obtuse isosceles triangle is a triangle with an obtuse angle and two equal sides that have two equal acute angles (angle less than 90° ).

Given:

The three angles of the triangle are given to be x°, x°  and (10x−2) = 128°. The obtuse angle is 128°, the two x° are acute angles. We are not using equation 10x − 2 since the value of the obtuse angle has been given as 128°

The sum of angles in a triangle is 180°

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The measurement of one of the acute angles is 26°

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3 years ago
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