Post a New Question


posted by on .

A certain car's cooling system has an 8-qt capacity and is filled with a mixture that is 30% alcohol. How much of this mixture must be drained off and replaced with pure alcohol if the solution is to be 50% alcohol?

  • algebra - ,

    the amount of alcohol in the parts must add up to the whole. So,

    .3 * (8-x) + 1.0 * x = .5*8
    x = 16/7

Answer This Question

First Name:
School Subject:

Related Questions

More Related Questions

Post a New Question