SOLUTION: Please help me solve this equation: A=P(1+rt) solve for r Please help me solve this equation: PV=nRT solve for T

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Question 24112: Please help me solve this equation: A=P(1+rt) solve for r
Please help me solve this equation: PV=nRT solve for T
Found 2 solutions by rapaljer, Earlsdon:
Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
A=P(1+rt) solve for r
A = P+ Prt

Subtract P from each side:
A-P = Prt

Divide both sides by P and t in order to leave the r alone on the right side:
%28A-P%29%2F%28Pt%29+=+%28Prt%29%2F%28Pt%29+

+%28A-P%29%2F%28Pt%29+=+r
---------------------------------------------------------------------------------------

PV=nRT solve for T

Divide both sides by nR to get the T alone on the right side:
%28PV%29%2F%28nR%29+=+%28nRT%29%2F%28nR%29+
+%28PV%29%2F%28nR%29+=+T+

R^2 at SCC

Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
1) Solve for r:
A+=+P%281%2Brt%29 Divide bothe sides of the equation by P.
A%2FP+=+1%2Brt Now Subtract 1 from both sides.
%28A%2FP%29-1+=+rt Finally, divide both sides by t.
%28%28A%2FP%29-1%29%2Ft+=+r
Another way to write this is:
r+=+%28A-P%29%2FPt
2) Solve for T:
PV+=+nRT Divide both sides of the equation by nR
PV%2FnR+=+T or
T+=+PV%2FnR