作业帮Please help me to solve this question with working please. TQCandle A and candle B are of the same length. Candle A, which is broader, can burn for 5 hours while Candle B, the thinner candle, can burn for 4 hours. If both candles are lighted at the s
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Please help me to solve this question with working please. TQCandle A and candle B are of the same length. Candle A, which is broader, can burn for 5 hours while Candle B, the thinner candle, can burn for 4 hours. If both candles are lighted at the s
Please help me to solve this question with working please. TQ
Candle A and candle B are of the same length. Candle A, which is broader, can burn for 5 hours while Candle B, the thinner candle, can burn for 4 hours. If both candles are lighted at the same time, how long does it take for candle A to be twice as long left as candle B?
Please help me to solve this question with working please. TQCandle A and candle B are of the same length. Candle A, which is broader, can burn for 5 hours while Candle B, the thinner candle, can burn for 4 hours. If both candles are lighted at the s
Let t be the time elapsed.（设t为经过的时间）
1-(1/5)t=2(1-(1/4)t)
t=10/3
Therefore,after 3 hours and 20 minutes,candle A is twice as long left as candle B.
（答：经过3小时20分钟,蜡烛A剩余长度为蜡烛B的两倍.）
After 3 hours and 20 minutes， Candle A is twice as long left as candle B?