En una escuela 30 padres de familia realizan una minga y se d moran 7,5 horas en termina el trabajo. Para la próxima minga , ¿ Cuántos padres de familia serqn necesarios añadir a los que trabajaron en la anterior minga , si se desea. Finalizar el trabajo en 5 horas ?

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

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answer for #1 is c

answer for #2 is d

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addition

step-by-step explanation:

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c