Answer:
for part b. the probability fraction is 17 over 20, or 17/20.
Step-by-step explanation:
the percentage of 65 years or older is 85% of the population. 85/100 simplified is 17/20.
The like terms are:
12x and 8x - they have the same variables
8, 55, 3, and 180 - they are all regular numbers (if you know what I mean)
Answer:
-4 ; -14
Step-by-step explanation:
x+9 = 5
x = 5-9 = -4
x+9 = -5
x = -5-9 = -14
Answer:
Step-by-step explanation:
(x+4)2-3(x+4)-3=0
2x+8-3x-12-3=0
-1x-4-3=0
-1x-7=0
-1x=7
x=7/-1
x=-7
Answer:
40 ways
Step-by-step explanation:
Step one:
given data
number of people= 6
number of committees=6
Required
The number of ways the committees can be formed differently
Step two:
Applying the combination formula we have
C(n,r)= n!/(n-r)r!
substitute
C(n,r)= 6!/(6-3)3!
C(n,r)= 6*5*4*3!/3*3!
C(n,r)= 6*5*4/3
C(n,r)= 120
/3
C(n,r)= 40 ways
