Answer:
a represent 1
and number is 11448.
Step-by-step explanation:
We know that a number is divisible by 9 if the sum of its digit is divisible by 9.
Given number aa448
sum of 4+4+8 = 16
number divisible by 9, 18 , 27,36
as we see sum of 448 is 16 , hence sum of a+a+4+4+8 should be number divisible by 9 and greater than 16 which is 18, 27,36
Let see of if sum of digits of aa448 is divisible by 18
a+a+4+4+8 = 18
2a + 16 = 18
2a = 18-16 = 2
a =2/2 = 1
Thus, number will be 11448
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Let see of if sum of digits of aa448 is divisible by 27
a+a+4+4+8 = 27
2a = 27 - 16
2a = 11 = 2
a =11/2 = 5.5
as digit cannot be fraction of decimal, it can take value from 1 to 9 hence
sum of digits of aa448 is not divisible by 27
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Let see of if sum of digits of aa448 is divisible by 36
a+a+4+4+8 = 36
2a + 16 = 36
2a = 36-16 = 20
a =20/2 = 10
as digit can take value from 1 to 9 hence sum of digits of aa448 cannot be divisible by 36 or any higher number than 36 which is divisible by 9.
Thus , a represent 1
and number is 11448.
Diameter of the spherical storage tank = 24 ft
So, radius of the tank = 
ft
Volume of the spherical tank = 4/3 * PI * r³
= 
= 7234.56 cubic feet
Diameter of cylindrical tank = 4 ft
So, radius = 
ft
Height of cylindrical tank = 10 ft
Volume of cylindrical tank = PI * r² * h
= 
cubic feet
So, the number of cylindrical tanks that can be filled from the spherical tank are =
Hence, 57 cylindrical tanks can be completely filled from the big spherical tank.
Answer:
70.2
Step-by-step explanation:
28.08 / 0.4 = 70.2
Answer:
x = 42.3.
Step-by-step explanation:
56.4 /14.4 = x / 10.8
Cross multiply:
14.4x = 56.4 * 10.8
x = (56.4 * 10.8) / 14.4
x = 42.3
