Question 1133927
i = prt
i = interest 
p = principal
r = rate
t = time


i = prt
3870 = p(0.06)(3)   {3870 interest for 3 years at 6% interest, changed rate to decimal}
3870 = 0.18p   {multiplied 0.06 by 3}
p = 21,500   {divided each side by 0.18}


$21,500 was invested
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