SOLUTION: Samantha invests a total of $25,000 in two accounts paying 7% and 4% annual interest, respectively. How much was invested in each account if, after one year, the total interest was

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Question 1194594: Samantha invests a total of $25,000 in two accounts paying 7% and 4% annual interest, respectively. How much was invested in each account if, after one year, the total interest was $1,390.00.
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
x at 7% yields 0.07x
25000-x at 4% yields 0.04(25000-x)=1000-0.04x
those two add the 1390
so 1390=0.03x+1000
390=0.03x
x=$13,000 @ 7%=$910
$25000-x=$12000@4%=$480
They add to $1390.