SOLUTION: If a person invested half of her money a 8% and half at 6% and received $210 in interest, find the total amount of money invested. What is the formula for attempting to figur

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Question 940215: If a person invested half of her money a 8% and half at 6% and received $210 in interest, find the total amount of money invested.

What is the formula for attempting to figure this out?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
I = Prt, Assuming t = 1 year
.08%28P%2F2%29+%2B+.06%28P%2F2%29+=+210 Multiplying thru by 2 so as all denominators = 1
.14P = 420
P = 420/.14 = $3000
And...checking ($1500 at each rate)
$120 + $90 = $210