SOLUTION: Michelle earned a total of $939 in simple interest from two separate accounts. In an account earning 6% interest, Michelle invested $1,400 more than three times the amount she inve

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Question 1183427: Michelle earned a total of $939 in simple interest from two separate accounts. In an account earning 6% interest, Michelle invested $1,400 more than three times the amount she invested in an account earning 1%. How much did she​ invest in each account?
Answer by greenestamps(13203) About Me  (Show Source):
You can put this solution on YOUR website!


Let x = amount invested at 1%
Then 3x+1400 = amount invested at 6%

interest from x at 1% = .01(x)
interest from 3x+1400 at 6% = .06(3x+1400)

The total interest was $939:

.01%28x%29%2B.06%283x%2B1400%29=939

Solve using basic algebra....