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 1000 gallons of gasohol containing 10% alcohol?
A. 417 gal 5%, 583 gal 12%
B. 714 gal 5%, 714 gal 12%
C. 50 gal 5%, 120 gal 12%
D. 286 gal 5%, 714 gal 12%
Answer: D
Mathematics
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A. 
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