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lchoops
Lv 5
Algebra 1 Help Please!?
A car radiator has a capacity of 16 quarts and is filled with 25% antifreeze solution. How much must be drained off and replaced with 100% solution to obtain a 40% solution.
I have some idea of what it is... but I am not sure. I need to see work so I can actually understand what you are doing. Thanks
1 個解答
相關度
- 1 十年前最愛解答
x * 0.25 + (16qt - x) * 1.00 = 16qt * 0.40 = 6.4qt
16qt - 0.75x = 6.4qt
9.6qt = 0.75x
12.8qt = x
16qt - x = 3.2qt
Drain off 3.2 quarts.
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