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nick8894
19.10.2021 •
Mathematics
4. What is the interval notation for the solution set of the following number
line?
-5 -4 -3
-2
-1 0 1
2
3
4
5
Solved
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Ответ:
deez
Step-by-step explanation:
Ответ:
they sell 240 sw =)))
Step-by-step explanation:
x= the number of b water they sold
y= the number of sw they sold
because they sold a total of 390 items => x+y= 390 (1)
because they sold water for $2 a bottle and the sandwiches for $4 each => 2x + 4y= 1260 (2)
(1) and (2) => x=150 ; y=240.
i hope this will help you =)))