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(7.RP.3) When invested at an annual interest rate of 6% an account earned $180.00 of simple interest in one year. How much money was originally invested in account? (1 pt) *
a) $10.80
b) $108
c) $648
d) $30
e) $300
f) $3,000

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  1. 3000*.06=180
    or more to the point, 180/.06=3000

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    bobpursley
  2. I = P*r*t = 180.
    P*0.06 *1 = 180,
    P = $3,000.

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