SOLUTION: Santos invests $7700 in two different accounts. The first account paid 11 %, the second account paid 2 % in interest. At the end of the first year he had earned $424 in interest. H
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Question 1129563: Santos invests $7700 in two different accounts. The first account paid 11 %, the second account paid 2 % in interest. At the end of the first year he had earned $424 in interest. How much was in each account?
At 11%-
At 2%- Answer by MathLover1(20850) (Show Source):
The first account paid %, =
the second account paid % in interest=
At the end of the first year he had earned $ in interest.
........eq.1->both sides multiply by ......eq.2->both sides multiply by
-------------------------------------------------- ........eq.1 ......eq.2
----------------------------------------------------subtract
then, ...plug in
How much was in each account?
At %- was -> got in interest
At %- was -> got in interest
