Question 1197623
Brian has half of his investments in stock paying a 7% dividend and the other half in a stock paying 13% interest. If his total annual interest is $730, how much does he have invested?
<pre>Let amount invested be A
Then amount invested at 7% and 13% is .5A
We then get: .07(.5A) + .13(.5A) = 730
                   .035A + .065A = 730
                             .1A = 730
          Amount invested, or {{{highlight_green(matrix(1,7, A, "=", 730/.1, "=", "7,300"/1, "=", highlight("$7,300")))}}}</pre>