Solve the Problem. -Martha Can Rake the Leaves in Her Yard in 5

question 39

Multiple Choice

Solve the problem.
-Martha can rake the leaves in her yard in 5 hours. Her younger brother can do the job in 7 hours. How long will it take them to do the job if they work together?

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Definitions:

Pharyngeal Constriction

The process of tightening the pharyngeal muscles to assist in swallowing, crucial for moving food from the mouth to the esophagus.

Peristalsis

A sequence of muscular contractions resembling waves that propel food along the digestive system.

Segmentation

The division of body regions into segments, a common process in the development and organization of organisms.

Pyloric Sphincter

A muscular valve that opens and closes to regulate the passage of partially digested food from the stomach to the duodenum.