Homework Help: algebra

Posted by kat on Sunday, June 24, 2012 at 1:48am.

if an investor invest a total of $1900.00 and one earned 4% and the other 2% and his total profit is $66, how much did he invest in both funds?

algebra - Reiny, Sunday, June 24, 2012 at 8:13am
amount invested at 4% ---- x
amount invested at 2% --- 1900 - x

solve for x :

.04x + .02(1900-x) = 66

(I suggest multiplying each of the three terms by 100 to get rid of those decimals)

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