Solve.How many ounces of a 20% saline solution must be added to 60 ounces of a 9% saline solution to make a 15% saline solution?

A. 3 oz
B. 30 oz
C. 12 oz
D. 72 oz


Answer: D

Mathematics

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Solve the problem.Two wheels are rotating in such a way that the rotation of the smaller wheel causes the larger wheel to rotate. The radius of the smaller wheel is  and the radius of the larger wheel is  Through how many degrees will the larger wheel rotate if the smaller one rotates 

A. 62.22° B. 61.22° C. 63.22° D. 61.12°

Mathematics

Find f-1(x).f(x) = 

A. f-1(x) = 
B. f-1(x) = x3 + 5
C. No inverse function exists.
D. f-1(x) =  + 5

Mathematics

Find the LCD. Build up the fractions to equivalent fractions having the LCD as the denominator. and 

A.  and 
B.  and 
C.  and 
D.  and 

Mathematics

Determine whether or not the relationship shown in the table is a function.Does the table define y as a function of x?

A. Yes B. No

Mathematics