A small acting club has 5 members. Three of the members are to be chosen for a trip to see a Broadway play. How many different 3-member groups are possible?

z(5 , 3) = 10

Step-by-step explanation:

x = 5

y = 3

z(x,y) = x/ y(x-y)

z (5, 3) = 5/ 3(5-3)

            = 4x5/ 2

            = 20/2

z (5- 3) = 10

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.

42%

step-by-step explanation:

we know,

total people = 60

total males = 25

percentage of males

= 25/60 × 100

= 25/6 × 10

= 25/3 × 5

= 125 / 3

= 41.

rounding of = 42%

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