HELP?! PLEASE?! DUE! EXTRA POINTS! How many gallons of a 70% antifreeze solution must be mixed with 70 gallons of 10% antifreeze to get a mixture that is 60% antifreeze? Use the six-step method! BRAINLIEST ANSWER INCLUDED
Ok, let’s take it step by step. Let x = number of gallons of 70% solution 100 = number of gallons of 25% solution Then x + 100 = number of gallons of a 60% solution.
0.70x + 0.25(100) = 0.60(x + 100)
0.70x + 25 = 0.60x + 60
0.10x = 35
x = 350 gal
So, you can mix 350 gal of a 70% solution with 100 gal of a 25% solution to get 450 gallons of a 60% antifreeze solution.
