Solve. -Two Pipes Can Be Used to Fill a Pool. Working

question 63

Multiple Choice

Solve.
-Two pipes can be used to fill a pool. Working together, the two pipes can fill the pool in 7 hours. The larger pipe can fill the pool in 3 hours less time than the smaller pipe can alone. Find the time to the nearest tenth of an
Hour it takes for the smaller pipe working alone to fill the pool.

• A) 15.7 hours
• B) 15.8 hours
• C) 12.8 hours
• D) 12.7 hours

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Definitions:

Tertiary Circular Reactions

Cognitive processes observed in children between 12 and 18 months of age, marked by the deliberate experimentation with variations of previous actions to see the consequences.

Five Senses

The traditional senses of sight, hearing, touch, taste, and smell, which provide information about the environment to the brain.

Deferred Imitation

The ability to replicate an action or behavior after a delay, indicating a form of memory and cognitive development.

Object Permanence

Object permanence is the understanding that objects continue to exist even when they cannot be observed (seen, heard, touched, smelled, or sensed in any way).