Amother wants to invest $6000 for her children's education. she invests a portion of the money in a bank certificate of deposit (cd account) which earns 4% and the remainder in a savings bond that earns 7%. if the total interest earned after one year is $ 360, how much money was invested at each rate?
how much money was invested in the cd account?
$
(round to the nearest cent.)
how much money was invested in savings bonds?
$
(round to the nearest cent.)

Money invested in CD account: $2000

Money Invested in Savings Bond: $4000

Step-by-step explanation:

Given

Total amount=$6000

Let  

x be the amount invested in CD at 4%

And

6000-x be the remaining amount invested in savings bond at 7%

So mathematically writing

0.04x+0.07(6000-x)=360

0.04x+420-0.07x=360

-0.03x+420=360

-0.03x=360-420

-0.03x= -60

x= -60/(-0.03)

x=$2000

So the amount invested in CD is $2000.

And the amount invested in savings bond is:

=6000-x

=6000-2000

=$4000  ..