Translate the problem to a system of equations, then solve using Cramer's Rule.Two different gasohol mixtures are available. One contains 5% alcohol and the other 12% alcohol. How much of each should be mixed to obtain 500 gallons of gasohol containing 10% alcohol?
A. 208 gal 5%, 292 gal 12%
B. 143 gal 5%, 357 gal 12%
C. 357 gal 5%, 357 gal 12%
D. 25 gal 5%, 60 gal 12%
Answer: B
Mathematics
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A. - 
B. 
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