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Over [174]
3 years ago
15

Train A and train B leave the central station at the same time.They travel the same sped,but in opposite directions,with train A

heading towards station A, and train B heading Towards station B.Train A reaches station A after
2 1/2 h.Train B reaches station B after 4h.Station A and B are 585 mi apart

What is the rate of the trains?

—— mph
Mathematics
1 answer:
Shtirlitz [24]3 years ago
5 0

Train B reaches station B after 312 h

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Answer:

The correct answer is:

In the above example cancer is an independent variable. (b)

Step-by-step explanation:

In order to explain the choice made, let m first explain what independent and  dependent variables are:

Independent variable: An independent variable is a variable that is under the direct control of the experimenter, and can be changed at will. In this example, the number of cigarettes or amount of tobacco smoked is the independent variable because it can be manipulated at will, to determine the outcome of the dependent variable.

Dependent variable: A dependent variable is a variable that the experimenter sets out to study. The independent variable is not under the direct manipulation of the experimenter but has values that come about as a result of the change of the independent variable. In this example, cancer is the dependent variable, because it is the result of the manipulation of the amount of tobacco.

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Answer:

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