How many gallons of a 50% antifreeze solution must be mixed with 60 gallons of 20% antifreeze to get a mixture that is 40%

Question

How many gallons of a 50% antifreeze solution must be mixed with 60 gallons of 20% antifreeze to get a mixture that is 40% antifreeze? Use the six-step method.
You need gallons.
(Round to the nearest whole number.)

Kunduz · Accepted Answer

Click to see the answer