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the Ace telephone Co. charges a flat monthly frr of $22.00 for a telephone line and $0.20 per minute for long distance calls.
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how many liters of distilled water must be added to 80 liters of 60% acid solution to obtain a 50 % acid solution?
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KE= 1/2 mv^2 = 1/2 (3x10^-3)(240)^2 = 86.4J Q=mct t= Q/mc = 86.4J/ (3x10^-3)(128J) = 225celsius Divide by half, 112.5, round it off to 113 degrees celsius.
0.75
