How many gallons of a 20% solution should be mixed with 15 gallon of 70% solution to yield a final mixed of lemonade containing 35% of pure lemonade juice

The correct answer is: x = 35 gallons

Step-by-step explanation:

We will make equation for this problem:

20 x + 70 · 15 = (x + 15) · 35 = > 20 x + 1050 = 35 x + 525 = >

35 x - 20 x = 1050 - 525 = > 15 x = 525 = > x = 525/15 = 35 gallons

x = 35 gallons

God with you!