Answer:
n = 5
Step-by-step explanation:
Given
5n + 20n = 5(n + 20), that is
25n = 5(n + 20) ← divide both sides by 5
5n = n + 20 ( subtract n from both sides )
4n = 20 ( divide both sides by 4 )
n = 5
Answer:
x
Step-by-step explanation:
x=\sqrt{19^2-10^2}=\sqrt{361-100} =\sqrt{261} \approx16.15549\\\approx16.16
Answer:
5
Step-by-step explanation:
A television programmer is arranging the order that seven
movies will be seen between the hours of 6 P.M. and 8 A.M. Two of the movies
have a G rating, and they are to be shown in the first two time blocks . One
of the movies is rated NC-17, and it is to be shown in the last of the time
blocks, from 6 A.M. until 8 A.M. Given these restrictions the movie can be
arrange in:
2*1*4*3*2*1*1 ways = 48 ways
