Question

Gabriel can dig a 10 ft. By 10 ft. Hole in ten hours. Jessica can dig the same hole in eight hours. If they worked together how long would it take them?

Answer 1

Answer: 4.44 repeating. Do you have to round it?

Step-by-step explanation:

(This is assuming the hole is somehow 2d? 10 by 10 means it has not width.)

1. 10×10=100

2. 100÷10=10

3. This means Gabriel Digs 10feet per hour.

4. 100 foot Hole. Jessica digs it in 8 hours. 100÷8=12.5

5. The combined rate at which they dig is 10+12.5 feet per hour, or 22.5 feet per hour.

6. 100÷22.5=4.4444 repeating.