Solve the problem. Helen Weller invested $15,000 in an account that pays 12% simple interest. How much additional money must be invested in an account that pays 15% simple interest so that the total interest is equal to the interest on the two investments at the rate of 13%?
algebra - Anonymous, Thursday, July 7, 2011 at 3:13pm
Set up the equations like this
1320+ .15x=1430+ .13x
by Ali :)