Solve the problem.How much pure acid should be mixed with 6 gallons of a 50% acid solution in order to get an 80% acid solution?
A. 15 gal
B. 24 gal
C. 9 gal
D. 3 gal
Answer: C
Mathematics
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Find the LCM by factoring.5, 10, 15
A. 150 B. 10 C. 30 D. 15
Mathematics
Write the improper fraction as a mixed number or a whole number.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Multiply. Assume all variables represent nonnegative real numbers.
? 
A. 
B. x4
C. 
D. 15x4
Mathematics
Solve for the variable.
+ 2 = 
A. x = 6 B. x = 144 C. No solution D. x = 36
Mathematics