Sara invested $4500 into two different accounts the first account paid 10% the second account paid 13% in interest at the end of the first year he earned $507 in interest how much was in each account

Question

Sara invested $4500 into two different accounts the first account paid 10% the second account paid 13% in interest at the end of the first year he earned $507 in interest how much was in each account

Answer 1

.1x +.13y = 507

x+y=4500

.1(4500-y)+.13y = 507

.03y = 57

y= 57/.03= $1900 at 13%

x=4500-1900= $2600 at 10%

.1(2600+.13(1900)=507