Mathematics, 05.03.2021 14:00 Dmgirl123

3. (05.09 MC) Jean and Mark are going to fill a pool with 2 different sized hoses. Jean can fill the pool in 8 hours, while Mark can complete it in 12 hours. Their supervisor thinks that the job will take 10
hours to complete if they work together. Explain each step in solving this equation, and determine if the supervisor is correct or not. (10 points)

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3. (05.09 MC) Jean and Mark are going to fill a pool with 2 different sized hoses. Jean can fill th...