Solve the problem. Round to an appropriate number of significant digits.Two different gasohol mixtures are available. One contains 5% alcohol and the other 12% alcohol. How much of each should be mixed to obtain 1500 gal of gasohol containing 10% alcohol?
A. 429 gal 5%, 1071 gal 12%
B. 625 gal 5%, 875 gal 12%
C. 1071 gal 5%, 1071 gal 12%
D. 75 gal 5%, 180 gal 12%
Answer: A
Mathematics
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A. 64i- 40 B. 64i + 40i2 C. 64i - 40i2 D. 40+ 64i
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Solve the equation.
+ 9 = 8
A. -1 B. 289 C. 1 D. No solution
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Translate to a proportion.145% of what number is 43?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Mathematics
Determine the place value of the digit 3 in the whole number.30,542
A. Tens B. Thousands C. Hundred-thousands D. Ten-thousands
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