En una fracción particular, el numerador y el denominador son positivos. El numerador de esta fracción se incrementa en 40 %. ¿En qué porcentaje debería reducirse su denominador
para que la nueva fracción sea el doble de la fracción original?

In a particular fraction the numerator and denominator are both positive. The numerator of
this fraction is increased by 40%. By what percentage should its denominator be decreased so
that the new fraction is double the original fraction?

(A) 10%
(B) 20%
(C) 30 %
(D) 40%
(E) 50%​

step-by-step explanation:

you divide the denominator by the numerator on both sides and if the quotients are equal then the fractions are equivalent

w'x is 0.

hope it

range is infinite on both x and y axis positive and negative

step-by-step explanation:

answer:   the paragraph proof is mentioned below.

step-by-step explanation:

given: in a δxwy where

such that, ∠wzx ≅ ∠yzx and zw≅zy

we have to prove that: segment zx is a perpendicular bisector of segment wy.

prove: since, zw≅zy ⇒ ∠wzy is a supplementary angle.

then, ∠wzy= 180°

⇒∠wzx + ∠yzx = 180° ( because xz divides ∠wzy into two parts)

but, ∠wzx ≅ ∠yzx ( given)

⇒∠wzy+∠wzy=180° ( by substitution)

⇒2∠wzy=180°

⇒∠wzy=90°

⇒∠wzy=∠yzx =90°

therefore, xz⊥wy where wz=zy

⇒zx is a perpendicular bisector of wy.