Solve.From a point on a river, two boats are driven in opposite directions, one at 9 miles per hour and the other at 10 miles per hour. In how many hours will they be 95 miles apart?
A. 1 hour
B. 5 hours
C. 6 hours
D. 7 hours
Answer: B
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An amplifier produces an output of 7 volts when the input signal is 0.15 volt. Find the decibel voltage gain. Round to the nearest whole number. ?
A. 17 db B. 33 db C. 77 db D. 50 db E. 38 db
Solve the problem by writing and solving a suitable system of equations.Suppose that you are to cut a piece of ribbon for a wreath that is 88 inches long into two pieces so that one piece is 3 times as long as the other. How long is each piece of ribbon?
A. 22 and 88 inches B. 22 and 66 inches C. 29 and 44 inches D. 29 and 88 inches
Write as a percent.0.204
A. 0.204% B. 0.0204% C. 204% D. 20.4%