+0  
 
0
44
1
avatar

Steven made two investments for a total amount of $1,680. One investment is at 7% and the other at 4%. The annual simple interest from the 4% investment is $20.80 less than the interest from the 7% investment, How much money was invested at 4%?

 Jun 30, 2022
 #1
avatar+124526 
+1

( 1680 - x) (.07) =  ( x) (.04) + 20.80

 

117.6  - .07x  = .04 x + 20.80

 

117.6 - 20.80  = .11x

 

96.8 =  .11x

 

96.8 / .11 = x  = $880  at 4%

 

 

cool cool cool

 Jun 30, 2022

4 Online Users

avatar