Question

0,5(-1,6t+2)<-2,5(t+20)​

Answer 1

0,5(-1,6t+2)<-2.5(t+20)

-0.8t+1<-2.5t-50

-0.8t+2.5t<-50-1

1.7t<-51

t<-51:1.7

t<30