Answer:
1/12
Step-by-step explanation:
1 hour=60 minutes
5/60=1/12
Answer: x=-1, x=4
Step-by-step explanation:
Question 1143037: How many gallons each of 25% alcohol and 5% alcohol should be mixed to obtain 20 gal of 16% alcohol? That equals 3.2 gallons pure, checks.