SOLUTION: How many gallons of 60% antifreeze solution must be mixed with 100 gallons of 20% antifreeze to get a mixture that is 50% antifreeze? Use the six-step method.
Algebra.Com
Question 632314: How many gallons of 60% antifreeze solution must be mixed with 100 gallons of 20% antifreeze to get a mixture that is 50% antifreeze? Use the six-step method.
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
-------------- percent ---------------- Amount
Antifreeze I 20 ---------------- 100 gal
Antifreeze II 60 ---------------- x gal
Mixture 50 ---------------- 100 + x gal
20 * 100 + 60 x = 50 ( 100 + x )
2000 + 60 x = 5000 + 50 x
60 x -50 x = -2000 + 5000
10 x = 3000
/ 10
x = 300 gal Antifreeze II
m.ananth@hotmail.ca
RELATED QUESTIONS
How many gallons of a 60% antifreeze solution must be mixed with 100 gallons of 15%... (answered by stanbon)
how many gallons of 60% antifreeze solution must be mixed with 100 gallons of 10%... (answered by jorel1380)
how many gallons of a 50% antifreeze solution must be mixed with 60 gallons of 20%... (answered by mananth)
How many gallons of a 60% antifreeze solution must be mixed with 60 gallons of 10%... (answered by josgarithmetic,Boreal)
How many gallons of a 50% antifreeze solution must be mixed with 100 gallons of a 30%... (answered by checkley79)
how many gallons of a 60% antifreeze solution must be mixed with 90 gallons of 20%... (answered by Fombitz)
how many gallons of a 70% antifreeze solution must be mixed with 100 gallons of 30%... (answered by Tatiana_Stebko)
how many gallons of a 60% antifreeze solution must be mixed with 70 gallons of 30%... (answered by jorel1380)
how many gallons of a 60% antifreeze solution must be mixed with 90 gallons of 30%... (answered by stanbon)
how many gallons of a 50% antifreeze solution must be mixed with 60 gallons of 25%... (answered by mananth)