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 numbe

r, what is n?
Solve A=P+PRT "for" P

Mathematics

1 answer:

Ivan3 years ago

3 0

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

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