Solve the problem.How many ounces of a 20% saline solution must be added to 30 ounces of a 5% saline solution to make a 10% saline solution?

A. 1 oz
B. 50 oz
C. 3 oz
D. 15 oz


Answer: D

Mathematics

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Determine whether the statement is a proposition.Go fly a kite.

A. Proposition B. Not a proposition

Mathematics

The two figures are congruent. Find the measure of the requested side or angle.?BCD

A. ?BCD = 225° B. ?BCD = 135° C. ?BCD = 211.5° D. ?BCD = 121.5°

Mathematics

Find the required value by setting up the general equation and then evaluating.Find y when x = 28 if y varies directly as x, and y = 12 when x = 16.

A. 21
B.
C. 7
D. 28

Mathematics

Solve the problem.The average cost per tape, in dollars, for a company to produce x sports videotapes is given by the functionA(x) =   for x > 0 Graph the function on the interval (0, ?) and complete the following:A(x) ?   as x ? ?.

A.

A(x) ? 1 as x ? ?.
B.

A(x) ? 0 as x ? ?.
C.

A(x) ? 16 as x ? ?.
D.

A(x) ? 11 as x ? ?.

Mathematics