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Question: How to Solve a First-Order IVP Involving a Constant of Proportionality?

Question:How to Solve a First-Order IVP Involving a Constant of Proportionality?

DJJerome1976 535
October 29 2011
2

Hi,

I've figured out several ways to accomplish this, using a series of commands, but is it possible using only dsolve to solve a first-order ivp involving two constants: the constant of integration and a constant of proportionality. For example, the type that arise using Newton's basic law of heating/cooling:

y'(t) = k*(y(t)-10), y(0)=70, y(1/2)=50

I welcome all ideas, especially if there is something easy I'm missing, thanks! 
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