Answer:
3 gallons
Step-by-step explanation:
Let
x ----> the amount of pure acid (100% solution) in gallons
Remember that



we know that

solve for x


therefore
3 gallons of pure acid should be mixed with 3 gallons of a 20% acid solution in order to get a 60% acid solution
Answer: first answer choice
Step-by-step explanation:
Answer:
its 0.01
Step-by-step explanation:
because you only need to round it up if there is an option
Answer:$90
Step-by-step explanation:
360/4=90