# math

Amount of an Investment. The amount of an ivestment of P dollarsfor T years at simple intrest rate r is given by
A=P+PrT

a)Rewrite formula by factoring out the greatest common factor on the right hand side.

b)find A if \$8300is invested for 3 yrs at simple intrest rate of 5%

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1. A=P+PrT
A = P(1 + rt)

in b) sub in 8300 for P, 3 for t, and .05 for r
A = 8300(1 + 3(.05))
= ....

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posted by Reiny
2. a) A = P(1 + r T)

b) They are asking you to compute
8300*[1 + (0.05*3)] = 8300*1.15
"*" means the same at "x"

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posted by drwls
3. Is this the same as PV formaula?

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posted by Debbie
4. No. That is Boyle's gas law.

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posted by drwls

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