Kira4585
30.07.2019 •
Mathematics
Mr. burn class is taking a field trip to the planetarium . the trip will cost 27$' for each student . there are 18 students in his class part a round each factor to estimate the total cost of the field trip
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Ответ:
Ответ:
2x -9 = 5y
(2x -9) /5 = y
x= -1
(2(-1) -9)/5 =y
(-2 -9) / 5 = y
-11/5 = y
x=0
(0-9)/5 = y
-9/5 = y
x=1
(2(1) - 9) /5 = y
-7/5 = y