El Sr. Negrón tiene que redactar una serie de cartas en su oficina. A lourdes le toma 6 horas pasar todas las cartas. A su compañera Rosabel, le toma 9 horas en realizar la misma tarea. Si
ambas trabajan juntas para hacer todo el trabajo de la oficina,
A. ¿Cuánto tiempo le tomará a ambos realizar el trabajo?
B. Explica con palabras, números o símbolos como obtuviste la respuesta."
Please help me . Spanish

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %

-2x-4

step-by-step explanation:

i'm pretty sure the answer is a. decreases with increase in