The price of Stock A at 9 A.M. was $12.25. Since then, the price has been increasing at the rate of $0.07 each hour. At noon the price of Stock B was $12.75. It begins to decrease at the rate of $0.15 each hour. If the two rates continue, in how many hours will the prices of the two stocks be the same?

Guest Feb 2, 2021

edited by
Guest
Feb 2, 2021

#1**0 **

Hi Guest!

A small side note, it really helps if you are more careful with the formatting, it makes reading a lot easier.

x = hour from noon (note that since stock a starts at 9, it's x + 3)

12.25 + .07(x+3) = 12.75 - .15x

.07x + .21 = .5 - .15x

.22x = .29

x = 29/22

Well... that's not a very nice number for an hour. -.-

So ig the answer is 1:19 ish.

Maybe you can find the error in this?

Sorry I couldn't help more.

=^._.^=

catmg Feb 3, 2021