Solution:
Let the volume (in litres) of acids used be:
x1=amount of 25% acid
x2=amount of 40% acid
x3=3*x2=amount of 60% acid
well, clearly the tax is the added 42 bucks, so hmmm if we take 600 to be the 100%, how much is 42 off of it in percentage?
Answer:
16(4b - c)
Explanation:
16 x 4b = 64b
16 x c = 16c
Answer:
A
Step-by-step explanation:
Use the quadratic formula