Respuesta :
Answer:
You can put this solution
$700*3=$2100
gain is 2100-700=1400 which is interest
remember I=PRT
1400=700*.10*T
2=.5 *T
T=20 yrs
check
A=P+Prt
2100=700 +700*.5*20=2100,,,ok
Answer:
You can put this solution
$700*3=$2100
gain is 2100-700=1400 which is interest
remember I=PRT
1400=700*.10*T
2=.5 *T
T=20 yrs
check
A=P+Prt
2100=700 +700*.5*20=2100,,,ok