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shekinahdavis8760
22.09.2021 •
Mathematics
An airplane flies 300 km in 5/12 hours. What is its average speed tr kitometers per hour?
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Ответ:
The correct answer is (0,2)
Step-by-step explanation:
2x + 3y = 6 multiplied by 3
-3x + 5y = 10 multiplied by 2
6x + 9y = 18
-6x + 10y = 20
19y = 38
y = 38 / 19
y = 2
2x + 3x2 = 6
2x + 6 = 6
2x = 0
x = 0/2
x = 0