We know that
step 1
find the volume of reservoir
[volume of reservoir]=15*20*10-----> 3000 ft³
step 2
find the volume of water in the reservoir
<span>if it is 56% full
</span>then
volume of water is------> .56*3000----> 1680 ft³
step 3
convert ft³ to gal
if 784 gal------------> 100 ft³
X--------------> 1680 ft³
X=1680*784/100-------> X=13.171.2 gal
the answer is
13171.2 gal
-3 . This is because if you divide any negative number by a positive number, you'll always get a negative answer.
It's -5.25 because 5*8 is 40 and 6*8 is 48.
Answer:
90
Step-by-step explanation:
Answer:
{ x : x = 2^n -1 , n ∈ N}
Where N is the set of natural numbers
Step-by-step explanation:
Mathematically, we can rewrite each term in the set as follows;
1 = 2^1 - 1
3 = 2^2 -1
7 = 2^3 -1
15 = 2^4-1
31 = 2^5-1
63 = 2^6 -1
so we can conclude that the nth term is 2^n -1
So writing this in set builder notation, we have;
{ x : x = 2^n -1 , n ∈ N}
Where N is the set of natural numbers