40 gallons / 5 minutes = X gallons / 20 minutes:
Cross multiply:
40 * 20 = 5 *x
800 = 5x
Divide both sides by 5:
x = 800/5
x = 160 gallons after 20 minutes.
There are 3 20 minute periods in an hour
160 x 3 = 480 gallons in one hour.
Answer: 86 billion blocks
Step-by-step explanation:
Here, the total population is 2 billion,
Since, the blocks a person owe = 43
Thus,

= 
= 
Therefore, total blocks that sold their introduction = 86 billion.
<h2><u>The answer is -17.</u></h2>
:)
Answer:
Step-by-step explanation:
-17/8= -2.125
The (i,j) minor of a matrix A is the matrix Aij obtained by deleting row i and column j from A it is true.
The (i,j) minor of a matrix A is the matrix Aij obtained by deleting row i and column j from A. A determinant of an n×n matrix can be defined as a sum of multiples of determinants of (n−1)×(n−1) sub matrices.
This is done by deleting the row and column which the elements belong and then finding the determinant by considering the remaining elements. Then find the co factor of the elements. It is done by multiplying the minor of the element with -1i+j. If Mij is the minor, then co factor,
+
.
Each element in a square matrix has its own minor. The minor is the value of the determinant of the matrix that results from crossing out the row and column of the element .
Learn more about the minor of the matrix here:
brainly.com/question/26231126
#SPJ4