SOLUTION: Simple interest varies jointly as principal and time. if $1000 left at interest for 2 years earned $110, find the amount of interest earned by $5000 for 5 years. Practice questi

Algebra ->  Test -> SOLUTION: Simple interest varies jointly as principal and time. if $1000 left at interest for 2 years earned $110, find the amount of interest earned by $5000 for 5 years. Practice questi      Log On


   

Question 934623: Simple interest varies jointly as principal and time. if $1000 left at interest for 2 years earned $110, find the amount of interest earned by $5000 for 5 years.
Practice question I got for a test... Please explain step my step
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
The variation sentence in English is transcribable directly into an equation.

i, amount of interest
p, principal invested
t, time of investment using years in example
k, constant of variation

i=kpt