Answer:
Multiply 1st equation by -4
Step-by-step explanation:
Multiply the 1stequation by-4
-20x+8y=-44. Leave 2nd equation
8x-8y=-16
See how the 8y cancels with -8y
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: 
m
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
