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20 points pls help.... Working alone, Ryan can dig a 10 ft. by 10 ft. hole in five hours. Castel can dig the same hole in six hours. How long would it take them if they worked together?

20 points pls help Working alone Ryan can dig a 10 ft by 10 ft hole in five hours Castel can dig the same hole in six hours How long would it take them if they class=

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thebecks

Answer:

2.72 hours

Step-by-step explanation:

Ryan digs 1/5 hole per hour

Castel digs 1/6 hole per hour

together they dig 1/5+1/6=11/30 holes per hour

11/30/hr divide by 11 to find out 1/30 of a hole per hour

1/30 and multiply by 30 to get a complete hole

1 hole=30/11=2.72 hours

Sorry, I can't move the boxes around

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