Answer:
Step-by-step explanation:
8x+10 - 4x+16 = 4x-6
w= 2x-3
A deck has 52 cards
A deck has 25 black cards.
A deck has 4 "4" cards but 2 of them are black, therefore 2 red
P(black or 4) = (25 + 2) / 52 = 27/52
distribute -9 to 2.7 and 1.55
-9x2.7= -24.3
-9x1.55= -13.95
then subtract -13.95 from -24.3
-24.3-(13.95)= -10.35
then add 3 to -10.35
answer= 7.35
Answer:
π/36 sec-1
Step-by-step explanation:
From the question we are given the formula below
s = rwt ..........eqn(1)
Where s= π/3m, r=3 m, t= 4 sec
We were not given value of " w" which implies we are required to find out values of" w"
We can make " w " the subject of the formula from eqn(1)
s = rwt
w= s/(rt)........eqn(2)
Then substitute for the values in eqn(2)
w= (π/3m ) / ( 3m × 4 sec)
= π/36 sec-1
Hence, the value of the
missing variable is π/36 sec-1
Given:
12 students average 70%
18 students average 80%
What is the overall average of the 30 students as a percent?
12 x 70% = 840%
18 x 80% = 1440%
840% + 1440% = 2280%
2280% / 30 = 76%
The overall average of the 30 students is 76%.
