Há quatro jovens numa sala eles têm em média 13 anos se entra na sala um rapaz de 23 anos qual passa a ser a média da idades do
grupo ?
1 answer:
Answer:
i dont get it
Step-by-step explanation:
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Answer:
The first one is the right answer
Step-by-step explanation:
172/387 = 4/t
Let t = time to travel 387 miles
172t = 4(387)
172t = 1548
t = 1548/172
t = 9
Answer: 9 hours
Answer:
x<-9
So C is correct answer
Step-by-step explanation:
-3x-7<20
-3x<20+7
-3x<27
x<27/-3
x<-9
Answer:
26.6 mi^2
Step-by-step explanation:
Answer:
4+4+8+8+422+33+65520222222+222= 65,520,222,923
