Answer:
The answer is D.
Step-by-step explanation:
The answer is D because you always divide the number on the x side on both sides. Therefore it is answer D.
Answer:
c=45
Step-by-step explanation:
by the pythagorean theorem, c = sqrt(3^2+6^2) = sqrt(9+36) = sqrt(45)
Therefore, c=45.
Answer:
87/3
Step-by-step explanation:
Here we are given the expression:

Now we have to find the value of this expression when x equals 9.
So plugging the value of x as -9 in the given expression:


=87/3
So on evaluating we get the value of expression as 87/3.
Answer:
Solution is invalid
Step-by-step explanation:
Let the time when they will have the same water content be x hours
At x hours;
For the first tank, the content will be;
50 + 10x
For the second;
29 + 3x
Equating both, will give us x
29 + 3x = 50 + 10x
We will get x as a negative number here
Since number of hours can not be negative, the solution is invalid