$4,000 is invested at 3% interest. how much money must be invested at 5% interest so that the total interest from the two investments is $195 after a year? $1,250 $1,500 $1,750

4000*0.03=120 interest per year with the 3% investment
195-120=75 wanted additional interest with 5%
75*(100/5)=75*20=$1500 necessary investment

On monday,mrs.wise bought 3 lbs of apples at $4per lb= 4*3=$12on tuesday ,20%off and she buy 5 lbs of apples = $4-20%=3.20*5lb=$16example: other wise when she buy 5lbs on monday she have to spend 4*5=20

21, i'm pretty sure it's right lol