averylorenhoffman
22.05.2020 •
Mathematics
A PLAY HAS PARTS FOR 12 BOYS AND 3 GIRLS. THERE ARE 5 LEAD ROLES FOR BOYS. ONE STUDENT IS INTERVIEWED FOR THE SCHOOL NEWSPAPER. WHAT IS THE PROBABILITY THAT THE PERSON INTERVIEWED IS A BOY WHO IS CAST IN A LEAD ROLE
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Ответ:
33% chance
Step-by-step explanation:
12+3=15
There are 5 lead roles meaning that you do 5/15=.33 or 1/3
Ответ:
-68
Step-by-step explanation:
Subtract 18 from each side of the equation.
a + 18 = -50
-18 -18
Turn -50 - 18 into -50 + (-18) because you need to add the opposite.
a = -50 + (-18)
a = 68