1. The simple interest on an investment is directly proportional to the amount of the investment. An investment of $9000

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answerhappygod
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1. The simple interest on an investment is directly proportional to the amount of the investment. An investment of $9000

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1. The simple interest on an investment is directly proportionalto the amount of the investment. An investment of $9000 earns$292.50 after 1 year. Find a mathematical model that gives theinterest N after 1 year in terms of the amount investedP.
2. Find a mathematical model that represents the statement.(Determine the constant of proportionality.)
A varies directly as r2.(A = 9đťś‹ when r = 3.)
3. Find a mathematical model for the verbal statement. (Usek for the constant of proportionality.)
V varies inversely as the cube of l.
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