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. 7.75 B. 8.00 C. 8.25 D. 6.75
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Solve the equation.
- 
= 
A. n = 
B. n = 
C. n = 
D. n = - 
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Use the graph to identify the x- and y- intercepts or state that there is no x- or y-intercept.
A. x-intercept = -4; y-intercept = -4 B. x-intercept = -2; y-intercept = 4 C. x-intercept = 2; y-intercept = 4 D. x-intercept = -2; y-intercept = -4
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Find the partial fraction decomposition for the rational expression.
A. 
+ 
+ 
B. 
+ 
C. 
+ 
+ 
D. 
+ 
+ 
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