The question above may be solved using the overall mass and component balances. If we let x be the number of liters of peroxide that should be added, the final mixture will have a quantity of x+12 L. The peroxide balance before and after mixing is,
x(1) + 12(0.08) = (x + 12)(0.16)
The value of x is 1.143. Thus, approximately 1.143 L of peroxide should be added to the original solution.
Answer:

Step-by-step explanation:
In order to complete the square, you want to convert a quadratic from the form -

to the form-

If you're in a hurry,

and you can convert from there.
Answer:
−9
Step-by-step explanation:
(3)(4) (−3/4)
=12(−3/4)
-9
To find that subtract Jane's own from Joe's so
2/5-1/7=9/35
So Joe has eaten 9/35 more pizza than Jane