Answer:
We have to add 1.86 L of water to make the solution 7% saline.
Step-by-step explanation:
The concentration of a saline solution is given by
C(x) = 
where x represents the amount of water used to dilute the solution.
We have to find how much water must be added to obtain a solution that is 7% saline.
If we see the equation we notice that as we add the value of x, the concentration of the solution decreases.
Here C(x) = 0.07
0.07 =
Rearranging,
1 + x = 
1 + x = 2.86
x = 1.86 L
We have to add 1.86 L of water to make the solution 7% saline.
Answer:
Simplify the equation as closely as possible to the form of y = mx + b. Check to see if your equation has exponents. If it has exponents, it is nonlinear. If your equation has no exponents, it is linear.
Step-by-step explanation:
Answer:
Domain :Set of all real values
Range : -5
Step-by-step explanation:
Here we see the blue line. Assuming it to be the graph of the function we are about to find Domain for.
Here we see that the graph is a straight line , parallel to x axis at y=-5
Hence the function will be
f(x)=-5
Also for every values of x, y =-5. Hence it is defined for all values of x. So the Domain is Set of All Real numbers
However,
For every value of x, the value of y is constant that is -5. Hence The range of f(x)=-5 is {-5}
Answer:
Uhhhh... 54?
Step-by-step explanation:
Just add them together.
I hope you can understand my work.
