Re: typo let X= time

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: : : Two candles are in a building. One is red and the other is blue. The candles are the same height, but the red is slightly thicker. The red burns out in 3 hours and the blue 2. After an amount of time the length of the red left unburned was twice that of the blue. A person who was in the building had a watch but it stopped, and there was no other clock in the building. How long was the person there? : : : Please show step by step. Thanks for your help. : : I bet Mr.G or Joel will do this more efficiently. and Dennis will make fun of it but.. : : let t= length of time : : Blue "contains" 2 hours of life and red "contains" 3 : : so for as time passes we subtract from that : : 2-x is the time remaining in blue : : 3-x isthe time remaining in red after the "amout of time" : : it tells that red had TWICe as much time left in it than blue so.... : : 2(2-x)=3-x distribute : : 4-2x=3-x add 2x to both sides : : 4=3+x subtract 3 from both sides : : 1=x ONE hour : : check it : : after one hour red would have 2 hours of life left and blue would have 1 hour of life left THAT"S double! : : Unless it is daylight savings time and they are on opposites sides of a timezone border (on a moving train) : : MB

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