Answer:
2.1 m
Step-by-step explanation:
The gutter is in the shape of a cylinder.
Its volume is 20 liters and its diameter is 11 cm (0.11 m).
Its radius is half of its diameter => r = 0.055 m.
The volume in cubic metres:
1 litre = 0.001 cubic metres
20 litres = 20 * 0.001 = 0.02 cubic metres
The volume of a section of guttering is given as:
where h = length of the guttering
Therefore:
The length of the section of guttering is 2.1 m long.
The second one would be 4 inches.
Answer:
Growth
Rate of growth is 77%
Initial amount is 22
Step-by-step explanation:
Generally, the exponential equation can be written as;
F(x) = I(1 + r)^n
where I is the initial value, r is the rate is percentage
From the question, we can see that the initial value is 22
Kindly recall that we can write 1.77 as 1+ 0.77
Now 0.77 is same as 77/100 which simply imply77%
Thus, we have 77% as the rate