Below is an instruction that describes a task. Write a response that appropriately completes the request in Swahili. Please answer in Swahili.

### Instruction:
Ten percent less than twice the total number of students present in the science class yesterday have attended class today. If there were 70 students in the class yesterday and 30 students are absent today, calculate the number of students registered for the course.

### Response:
 Maradufu ya idadi ya wanafunzi waliokuwepo darasani ya sayansi jana ni 70*2 = <<70*2=140>>140
Asilimia kumi chini ya mara mbili ya idadi ya wanafunzi waliokuwepo darasani jana inamaanisha kuna wanafunzi 10/100*140 = <<10/100*140=14>>14 wachache kuliko mara mbili ya idadi ya wanafunzi waliokuwepo jana.
Idadi ya wanafunzi waliohudhuria darasani ya sayansi leo ni 140-14 = <<140-14=126>>126
Ikiwa idadi jumla ya wanafunzi waliojiandikisha kwa kozi hiyo ambao hawapo leo ni 30, darasa kamili la kozi ya sayansi lina wanafunzi 126+30 = <<126+30=156>>156.