I think it is 9 1/2 feet.
Answer:
<em>The capacity of the cistern is</em>
<em>The volume of iron used is</em>
Step-by-step explanation:
<u>Volume</u>
The volume of a rectangular box of dimensions x,y,z is given by:
V = x.y.z
The external dimensions of the rectangular cistern are 1.35 m, 1.08 m, and 0.90 m, thus the external volume is:
The cistern is made of iron 2.5 cm= 0.025 thick, thus the internal dimensions are:
1.35 - 0.025 = 1.325 m
1.08 - 0.025 = 1.055 m
0.90 - 0.025 = 0.875 m
The internal volume is:
The capacity of the cistern is 1.2231~m^3
The volume of iron used is the difference between the external and the internal volumes:
The volume of iron used is
Answers D : 3.75/100=3/80
3/80 x 186000 = $6975
Answer: Age of Lin is 12
Solution:
Let X= age of Maya
(X/2)+4= age of Adrian
((X/2)+4)-7= age of Lin
X+(X/2)+4+((X/2)+4-7)=61
X+.5X+4+.5X+4-7=61
2X+4+4-7=61
2x=61-8+7
2X=60
X=30 age of Maya
19= age of Adrian
Age of Lin is
=((X/2)+4)-7
=15+4-7
=12
To check if this is correct
<span>30+19+12=61</span>
Answer is 17.647 or if rounded 18