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 The price of Stock A at 9 A.M. was ​$12.25. Since​ then, the price has been increasing at the rate of ​$0.13 each hour. At noon the price of Stock B was

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 The price of Stock A at 9 A.M. was ​$12.25. Since​ then, the price has been increasing at the rate of ​$0.13 each hour. At noon the price of Stock B was ​$13.00 It begins to decrease at the rate of ​$0.09 each hour. If the two rates​ continue, in how many hours will the prices of the two stocks be the​ same?

 Nov 18, 2015

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Let the hours when they equalize=h, then we have:

12.25 + .13h=13 - .09h

.13h + .09h=13 - 12.25

.22h=.75 divide both sides by .22

h=.75/.22

h=3 9/22,  hours, when they will equalize.

 Nov 18, 2015

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