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Formulas are used frequently throughout many areas of math and science. One you should be familiar with is the formula for simple interest: A equals P left parenthesis 1 plus r t right parenthesis, where P is the principal amount, r is the percentage rate, and t is the number of time periods.
Show (or explain in words) how you would rearrange the formula so that:
P is the subject
r is the subject
t is the subject
Once rearranged, you can use each version of the equation to solve for the specified variable. Alternatively, you can substitute in known values first and then rearrange to solve for the unknown variable. Which method do you prefer and why?
Please follow these guidelines for your discussion posts:
Write at least 150–300 words.
Provide at least one example to support your response. (Example choices include an anecdote, a statistic, and/or textual evidence.)

[tex]A = P(1 + rt) \\by \: cross \: multiplication \: \\ P = \frac{A }{(1 + rt)} \\ by \: distributing \: P \\ A = P + Prt \\ A - P = Prt \\ r = \frac{A - P}{Pt} \\ it \: follows \: that \: \\ t = \frac{A - P}{Pr}[/tex]

suppose that r = 50%=0.5,

t =10 years and P= 100, find A?

A=100(1+(0.5)(10))=600

suppose t =10 yrs, r=50%, A=600, find P?

P=600/((1+(0.5)(10))=100

suppose t =10 yrs, r=50%, A=600, P= 100 find r?

r= (600-100)/100(10)=500/1000=0.5=50%

suppose r=50%, A=600, P= 100 find t?

t= (600-100)/100(0.5)=500/50=10 yrs