Asked by Jesvlyn Garcia
                Determine if two variables are directly proportional. if so, write the equation of variation.
Simple interest on an investment (i) in one year and the amount invested (p), at a rate of 2.5%
            
        Simple interest on an investment (i) in one year and the amount invested (p), at a rate of 2.5%
Answers
                    Answered by
            oobleck
            
    since I = Prt
and P and r are fixed, this is the same as
I = kt, where k = Pr
so yes, it's proportional
    
and P and r are fixed, this is the same as
I = kt, where k = Pr
so yes, it's proportional
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