it is neccessary to have 40% antifreeze solution in the raditor of a certain car. the raditor now has 40 liters of 20% solution. How many liters of this should be drained and replaced with 100% antifreeze to get the desired strength
Thank you for the opportunity to help you with your question!
let the amount to be drained be x
amount to be left in car will be 40-x
100% x + 20% (40-x) = 40% * 40
x+ 8 - 0.2x = 16
x= 10 liters
Content will be erased after question is completed.
Enter the email address associated with your account, and we will email you a link to reset your password.
Forgot your password?