Solve the Problem -Three Trains - One Eastbound, One Westbound, and One Northbound

question 149

Multiple Choice

Solve the problem
-Three trains - one eastbound, one westbound, and one northbound - leave a city at the same time. The speed of the northbound train is 30 miles per hour greater than the speed of the eastbound train. After 2 hours, the Distance between the westbound train and the eastbound train is 160 miles. Twice the speed of the westbound Train is 40 miles per hour more than the speed of the northbound train. Find the speeds of the three trains.

• A)eastbound, 20 mph; westbound, 60 mph; northbound, 60 mph
• B)eastbound, 40 mph; westbound, 50 mph; northbound, 70 mph
• C)eastbound, 30 mph; westbound, 50 mph; northbound, 60 mph
• D)eastbound, 60 mph; westbound, 50 mph; northbound, 30 mph

Recognize the role of climate change in the spread of diseases.

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Grasp the social theories related to health behaviors and addiction.

Acknowledge the influence of social and economic factors on mental health and disease prevalence.

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Definitions:

Molecular Formula

The representation of a compound showing the types and numbers of atoms present in the simplest ratio.

Reaction Pathway

The sequence of events at the molecular level that leads to a chemical reaction, including the transition states and intermediate products.

Mechanism

The sequence of steps that makes up a chemical reaction, detailing the path from reactants to products, including intermediates and transition states.

Reaction Pathway

A series of steps that shows how reactants are converted into products in a chemical reaction.