Questions on Algebra: Functions, Domain, NOT graphing answered by real tutors!

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Question 165993: Please help.
Solve for t
P=Irt
Would you just divide P by Ir, which will give you P/Ir=t?: Please help.
Solve for t
P=Irt
Would you just divide P by Ir, which will give you P/Ir=t?
Answer by jim_thompson5910(9869) About Me  (Show Source):
You can put this solution on YOUR website!
You are correct. The answer is t=P/(Ir). If you aren't sure, try plugging in some numbers. For instance, let I=2, r=10 and t=5. So

P=2*10*5 ----> P=100

Now let's say that P=100, I=2 and r=10 but now we do NOT know the value of "t". So this means that

100=2*10*t ----> t=100/(2*10) ----> t=100/20 ----> t=5 (which was the original value we gave to "t")


This isn't a foolproof way to confirm your answer, but it may help you see what's happening.