Question 1157415
7% account=x
4% account=100,000-x
interest earned is .07x + .04(100,000-x)=.07x+4000-0.04x=0.03+4000
That is to equal $5150
therefore, 0.03x=$1150
x=$38,333 which at 7% yields $2683.33
100000-x=61,666.67 which at 4% yields $2466.67
Those add to $5150

$2683.33 at 7%
$2466.67 at 4%