nana54muller
30.08.2019 •
Mathematics
There are 25 children i the lunch queue, including nik.
nik says,
"there are twice as many people in front of me as there are behind me."
how many children are in front of nik.
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Ответ:
x+y+1=25
and
x=2y
Substitute 2y for x.
2y+y+1=25
3y+1=25
3y=24
y=8
Now, plug in 8 for y.
x=2y
x=16
16 people are in front of Nik.
Ответ: