SMILEDOG
25.07.2019 •
Mathematics
Atotal of 306 tickets were sold for the school play. they were either adult tickets or student tickets. the number of student tickets sold was two times the number of adult tickets sold. how many adult tickets were sold?
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Ответ:
(2y)+y=306
3y=306
y=102adult tickets sold.
Ответ:
2x=student tickets
x+2x=306
3x=306
x=102 adult tickets
2x=2*102=204 student tickets
Ответ:
1/100% = ( 1 / 100) / 100 = 1/ (100*100) = 1 / 10000;