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OpenStudy (anonymous):
a chemist mixes X grams of a 20% saline solution and Y grams of a 5% saline solution to make 4.5 grams of a 10% saline solution. what is the value of X?
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OpenStudy (anonymous):
x+y=4.5 0.2x+0.05y=0.1(x+y) Now you have a system, solve for x and y.
OpenStudy (anonymous):
thanks soo much
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