Alex lights a candle every 10 minutes. each candle burns for 40 minutes and then goes out. how many candles are alight 55 minutes after alex lit the first candle? show the solution.

3

Step-by-step explanation:

5 candles would be lit within 55 minutes

however after the 40th minute one would go out

and then another 10 minutes later

so at the 40 and 50 minute mark, a candle out go out each

therefore at 55 minutes only 3 candles would remain

step-by-step explanation:

i hope this is what you were looking for.

see attached graph