Solve the problem.How many liters of a 20% alcohol solution must be mixed with 50 liters of a 40% solution to get a 30% solution?
A. 100 L
B. 10 L
C. 50 L
D. 5 L
Answer: C
Mathematics
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Use the graph of the given one-to-one function to sketch the graph of the inverse function. For convenience, the graph of y = x is also given.
A. 
B. 
C. 
D. 
Mathematics
?ABC is similar to ?DEF. 
If BC = n, AB = 4n - 3, EF = 4, and DE = 15, find n and AB.
A. n = 4; AB = 45
B. n = 12; AB = 45
C. n = 
; AB = 
D. n = 3; AB = 9
Mathematics
Solve the problem.On an architect's blueprint, 1 inch corresponds to 6 feet. If an exterior wall is 
long, find how long the blueprint measurement should be. Write the answer as a mixed number, if necessary.
A. 8 in.
B. 2
in.
C. 24 in.
D. 3
in.
Mathematics
Solve.
+ 
= 
A. - 
, 
B. 
C. - 
, 24
D. - 
Mathematics