A) The radius of the hemisphere is:
r = d÷2 = 21÷2 = 10.5cm
We can now calculate the volume of a hemisphere:
V = 2/3 π r<span>³
= </span> 2/3 π (10.5)³
= 2423 cm³
As we can consider that 1000cm³ contains 1l, each bowl contains
2423 ÷ 1000 =2.423l.
In total, the milk served will be: 2.423 × 100 = 242l
B) The total cost will be:
242 × 10 = 2420Rs
C)<span> Mr.and Mrs. Ramesh helped blind students using an eco-friendly material, therefore they have shown social and environmental values.</span>
Answer:
6
Step-by-step explanation:
Answer:
x = 
Step-by-step explanation:
Given
+ 
- 
= 
Multiply through by wxyz to clear the fractions
2xyz + 3wyz - 4wxz = wxy ( subtract wxy from both sides )
2xyz + 3wyz - 4wxz - wxy = 0 ( subtract 3wyz from both sides )
2xyz - 4wxz - wxy = - 3wyz ( factor out x from each term on the left side )
x(2yz - 4wz - wy) = - 3wyz ( divide both sides by (2yz - 4wz - wy )
x = 
( multiply numerator/ denominator by - 1 )
x =
