Answer:
V =972 pi mm ^3
Step-by-step explanation:
The diameter is 18 so the radius is 1/2 of the diameter
18/2 = 9
r=9
The volume of a cylinder is
V = pi r^2 h
V = pi (9)^2 12
V =972 pi mm ^3
Answer:
84
Step-by-step explanation:
5/2 for every 2.5 skiers one snowboarder rides
[A] 2.5 skiers to one snowboarder
[B] 
210=2.5*x divide both sides by 2.5
x=84
[C] 84 snowboarders rode at the same time as 210 skiers
Answer:
Step-by-step explanation:
y ∞ x/m
y = kx/m
Where k is the constant of proportionality
A. k = ym/x
y=5 when x=7 and m=4
k = (5×4)/7
k = 20/7
y = 20x/7m
B)the value of when x=2and m=2
y = 20x/7m
y = (20×2)/(7×2)
y = 40/14
y = 20/7
y = 2 6/7
C. The value of m when y=2 and x=4
y = 20x/7m
7ym = 20x
m = 20x/7y
m = (20×4)/(7×2)
m = 80/14
m = 40/7
m = 5 5/7
Answer:
62 degrees, or A, is the answer
Step-by-step explanation:
combine expressions : 3x - 42 = 180
Then : 3x = 222
x = 74
74 - 12 = 62
Answer:
78
Step-by-step explanation:
Average income from Sunday to Thursday = Rs 75.
There are 5 days .
So average = sum / 5
= sum = 5 average
= sum = 5 × 75
= sum = 375
He earns Rs 93 on Friday .
So adding this sum = Rs 375 + 93
= Rs 468
Average = sum / number of terms
= Average = 468/6
= Average = 78
Hence the average is 78 .
