taytay2221 taytay2221

13-02-2015
Mathematics

Answered

Let n equal a certain number. If five times the sum of the number and -1 is equal to 15 less than the product of 3 and the number, what is n?

Solve A=P+PRT "for" P

Verified Answer :

konrad509 konrad509

13-02-2015

\(5(n+(-1))=3n-15\\ 5(n-1)=3n-15\\ 5n-5=3n-15\\ 5n-3n=-15+5\\ 2n=-10\\ n=-5\\\\ A=P+PRT\\ A=P(1+RT)\\ P=\dfrac{A}{1+RT}\)

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