3. Marie invested $800 in an account that pays 10% simple interest per year. The equation representing Marie's investment is A = P + Prt, where A is the value of the investment, in dollars, Pis the starting principle amount, in dollars, r is the interest rate written as a decimal, and t is the number of years the money is invested. How many years will pass before the investment is worth $1200?

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter3: Solving Equation And Problems
Section3.5: Equations With The Variable On Both Sides
Problem 15P
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3.
Marie invested $800 in an account that pays 10% simple interest per year. The
equation representing Marie's investment is A = P + Prt, where A is the value of the
investment, in dollars, Pis the starting principle amount, in dollars, r is the interest rate
written as a decimal, and t is the number of years the money is invested. How many years
will pass before the investment is worth $1200?
Transcribed Image Text:3. Marie invested $800 in an account that pays 10% simple interest per year. The equation representing Marie's investment is A = P + Prt, where A is the value of the investment, in dollars, Pis the starting principle amount, in dollars, r is the interest rate written as a decimal, and t is the number of years the money is invested. How many years will pass before the investment is worth $1200?
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